CONCEPTUS INC
8-K, 1996-12-10
SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
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                             UNITED STATES
                    SECURITIES AND EXCHANGE COMMISSION

                        WASHINGTON, D.C. 20549

                              FORM 8-K
                           CURRENT REPORT
                 Pursuant to Section 13 or 15(d) of the
                    Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  November 26, 1996

                            CONCEPTUS, INC.
- ------------------------------------------------------------------------
          (Exact name of registrant as specified in its charter)


                               Delaware
- ------------------------------------------------------------------------
             (State or other jurisdiction of incorporation)


        0-27596                               94-3170244
- ------------------------------------------------------------------------
(Commission File Number)             (IRS Employer Identification No.)


1021 Howard Avenue, San Carlos, CA                    94070
- ------------------------------------------------------------------------
(Address of principal executive offices)            (Zip Code)


Registrant's telephone number, including area code:   (415) 802-7240
                                                   ---------------------
                                  N/A
- ------------------------------------------------------------------------
     (Former name or former address, if changed since last report)


<PAGE>
     

Item 2     ACQUISITION OR DISPOSITION OF ASSETS

On October 29, 1996, Conceptus, Inc., a Delaware corporation ("Registrant"), 
entered into an Agreement and Plan of Reorganization (the "Agreement") with 
Microgyn Inc., a Massachusetts corporation ("Microgyn") and CPTS Acquisition 
Corporation, a corporation and a wholly-owned subsidiary of Registrant 
("Sub") pursuant to which Registrant agreed to acquire Microgyn via the 
merger of Sub with and into Microgyn. At the effective time of the merger, 
November 26, 1996, Registrant acquired from the shareholders of Microgyn 
all of the issued and outstanding stock of Microgyn in exchange for the 
rights to receive cash and Common Stock of Registrant and Microgyn became a 
wholly-owned subsidiary of Registrant.

Registrant will pay to the former Microgyn shareholders an aggregate of (i) 
$3,000,000 in cash immediately following the effective time, (ii) $1,000,000 
in Common Stock six months following the effective time, (iii) an additional 
$1,000,000 in Common Stock conditioned upon the accomplishment of certain 
performance milestones and (iv) indeterminate further cash or stock payments 
upon the accomplishment of additional performance milestones over 
approximately five years following the effective time of the merger. A 
portion of the initial Common Stock issuance will be held in escrow for a 
period of time to secure certain indemnification obligations owed by the 
former Microgyn shareholders to Registrant. Under certain circumstances, 
Registrant will have the option to substitute cash for any required payments 
of Common Stock.

The initial cash payments will be funded from Registrant's existing cash and 
investments. Registrant anticipates that it will be able to fund future cash 
payments from existing cash and investments combined with cash generated from 
future operations, although there can be no assurance that it will not be 
necessary or that Registrant will not choose to pursue other means by which 
to finance such obligations. The amount of consideration to be paid by 
Registrant in connection with this acquisition was determined based on 
arms-length negotiations between Registrant, Microgyn and their respective 
representatives.

Microgyn, a privately held medical device company prior to the acquisition, 
is focused on developing products to increase the safety and performance of 
resectoscope procedures, including therapeutic hysteroscopy.

<PAGE>

Item 7     FINANCIAL STATEMENTS. PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

      (a)  FINANCIAL STATEMENT OF ACQUIRED BUSINESS.

           As it is impracticable to provide the required financial 
           statements with respect to the business acquired at the time that 
           this report is filed, such financial statements will be filed as 
           soon as they become available and in any event not later than 
           February 10, 1997.

      (b)  PRO FORMA FINANCIAL INFORMATION

           As it is impracticable to provide the required financial 
           information with respect to the business acquired at the time that 
           this report is filed, such financial statements will be filed as 
           soon as they become available and in any event not later than 
           February 10, 1997.

      (c)  EXHIBITS

           2.1  Agreement and Plan of Reorganization dated October 29, 1996 
           between the Registrant, Microgyn, Inc. and CPTS Acquisition 
           Corporation (a wholly-owned subsidiary of Registrant), as amended 
           November 7, 1996.

<PAGE>

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the 
Registrant has duly caused this report to be signed on its behalf by the 
undersigned thereunto duly authorized.

                                     CONCEPTUS, INC.
                                     (Registrant)


Dated:  December 10, 1996            By:  /s/ Sanford Fitch
                                        -------------------------------------
                                        Sanford Fitch
                                        Vice President, Finance and Operations
                                        Chief Financial Officer

<PAGE>

                             INDEX TO EXHIBITS


     (c)   EXHIBITS

           2.1  Agreement and Plan of Reorganization dated October 29, 1996 
           between the Registrant, Microgyn, Inc. and CPTS Acquisition 
           Corporation (a wholly-owned subsidiary of Registrant), as amended 
           November 7, 1996.



<PAGE>

- ------------------------------------------------------------------------------

                         AGREEMENT AND PLAN OF REORGANIZATION

                                        AMONG

                                   CONCEPTUS, INC.

                             CPTS ACQUISITION CORPORATION

                                         AND

                                    MICROGYN, INC.



                             DATED AS OF OCTOBER 29, 1996


- -----------------------------------------------------------------------------
<PAGE>

                             TABLE OF CONTENTS

                         AGREEMENT AND PLAN OF MERGER

                                                            Page
                                                            ----
ARTICLE I - THE MERGER......................................  1

     Section 1.1 Actions to be Taken........................  1
     Section 1.2 Common Stock of Surviving Corporation......  2
     Section 1.3 Conversion or Cancellation of
                 Microgyn Capital Stock.....................  2
     Section 1.4 No Fractional Interests....................  6
     Section 1.5 Issuance and Delivery of Merger
                 Securities.................................  6
     Section 1.6 Stock Transfer Books.......................  7
     Section 1.7 Shareholders' Meeting......................  7
     Section 1.8 Filing of Merger Documents.................  8
     Section 1.9 Merger of Surviving Corporation
                 and Conceptus..............................  8

ARTICLE II - REPRESENTATIONS AND WARRANTIES OF MICROGYN.....  8

     Section 2.1 Corporate Organization.....................  8
     Section 2.2 Capital Structure..........................  9
     Section 2.3 No Other Agreements to Sell
                 Assets, Merge, Etc.........................  9
     Section 2.4 Authorization; Execution and
                 Delivery...................................  10
     Section 2.5 Governmental Approvals and
                 Filings....................................  10
     Section 2.6 No Conflict................................  10
     Section 2.7 Financial Statements; Absence of
                 Undisclosed Liabilities....................  11
     Section 2.8 Absence of Changes.........................  11
     Section 2.9 Contracts and Commitments..................  11
     Section 2.10 Legal Proceedings.........................  13
     Section 2.11 ERISA Matters.............................  13
     Section 2.12 Taxes.....................................  14
     Section 2.13 Intellectual Property.....................  15
     Section 2.14 Environmental Matters.....................  19
     Section 2.15 Certain Agreements........................  20
     Section 2.16 Interests of Officers and
                  Directors.................................  20
     Section 2.17 Restrictions on Business
                  Activities................................  20
     Section 2.18 Title to Properties; Absence of
                  Liens and Encumbrances; Condition
                  of Equipment..............................  20
     Section 2.19 Regulatory Matters; Governmental
                  Licenses; Compliance with Laws............  21
     Section 2.20 Labor Matters.............................  21
     Section 2.21 Questionable Payments.....................  22
     Section 2.22 Insurance.................................  22
     Section 2.23 Brokers...................................  23
     Section 2.24 Disclosure................................  23
     Section 2.25 Vote Required.............................  23
     Section 2.26 Microgyn Affiliates.......................  23


<PAGE>

                             TABLE OF CONTENTS
                                (CONTINUED)


                                                            Page
                                                            ----
ARTICLE III - REPRESENTATIONS AND WARRANTIES OF TARGET 
              AND SUB ......................................  23

     Section 3.1 Corporate Organization.....................  24
     Section 3.2 Capital Structure..........................  24
     Section 3.3 Authorization, Execution and
                 Delivery...................................  24
     Section 3.4 Governmental Approvals and
                 Filings....................................  25
     Section 3.5 No Conflict................................  25
     Section 3.6 Reports; Accuracy of Information...........  25
     Section 3.7 Litigation.................................  26
     Section 3.8 No Material Adverse Change.................  26
     Section 3.9 Brokers....................................  26
     Section 3.10 Resale of Merger Shares...................  26

ARTICLE IV - COVENANTS OF MICROGYN..........................  27

     Section 4.1 Regular Course of Business.................  27
     Section 4.2 Restricted Activities and
                 Transactions...............................  27
     Section 4.3 Dividends and Distributions;
                 Repurchases................................  29
     Section 4.4 No Default or Violation....................  29
     Section 4.5 Taxes; Consent.............................  29
     Section 4.6 Advice of Changes..........................  30
     Section 4.7 Negotiation With Others....................  30
     Section 4.8 Acquisition Proposals......................  30
     Section 4.9 Consents, Approvals and Filings............  30
     Section 4.10 Access to Records and Properties..........  31
     Section 4.11 Non-Competition Agreements................  31

ARTICLE V - COVENANTS OF TARGET AND SUB.....................  31

     Section 5.1 Listing Application........................  31
     Section 5.2 Employee Benefits..........................  31
     Section 5.3 Conduct of Microgyn Business...............  31
     Section 5.4 Microgyn Obligations Under MSI
                 Agreements.................................  32
     Section 5.5 Securities Law Compliance..................  32
     Section 5.6 Reports Under Securities Exchange
                 Act of 1934................................  33

ARTICLE VI - SECURITIES ACT COMPLIANCE......................  33

     Section 6.1 Securities Act Exemption...................  33
     Section 6.2 Fairness Hearing and Permit................  33
     Section 6.3 Stock Restrictions.........................  33
     Section 6.4 Shareholders' Representations
                 Regarding Securities Law Matters...........  34

ARTICLE VII - MUTUAL COVENANTS..............................  34

     Section 7.1 Confidentiality............................  34
     Section 7.2 Expenses...................................  36
     Section 7.3 Public Announcements.......................  36


                                -ii-

<PAGE>
                             TABLE OF CONTENTS
                                (CONTINUED)


                                                            Page
                                                            ----
     Section 7.4 Agreements to Cooperate....................  37
     Section 7.5 State Statutes.............................  38
     Section 7.6 Additional Agreements......................  38

ARTICLE VIII - PROXY STATEMENT..............................  38

     Section 8.1 Preparation................................  38
     Section 8.2 Representations, Warranties and
                 Covenants of Microgyn......................  38
     Section 8.3 Representations, Warranties and
                 Covenants of Conceptus.....................  38
     Section 8.4 Mailing to Shareholders;
                 Recommendation of Microgyn Board;
                 Microgyn Special Meeting...................  39

ARTICLE IX - CONDITIONS TO THE OBLIGATIONS OF CONCEPTUS 
             AND SUB........................................  39

     Section 9.1 Representations and Warranties.............  39
     Section 9.2 Performance of Covenants...................  39
     Section 9.3 No Governmental or Other
                 Proceeding or Litigation...................  39
     Section 9.4 Approvals and Consents.....................  40
     Section 9.5 Opinion of Counsel.........................  40
     Section 9.6 Certificate................................  40
     Section 9.7 Dissenting Shares..........................  40
     Section 9.8 No Material Adverse Change.................  40
     Section 9.9 Resignation of Officers and
                 Directors..................................  40
     Section 9.10 FIRPTA....................................  40
     Section 9.11 Microgyn Warrants.........................  41
     Section 9.12 Exchange and Escrow Agreement.............  41
     Section 9.13 Non-Competition Agreements................  41
     Section 9.14 Microgyn Advisors.........................  41
     Section 9.15 Termination Agreement.....................  41
     Section 9.16 Employment Agreements.....................  41

ARTICLE X - CONDITIONS TO MICROGYN'S OBLIGATIONS............  41

     Section 10.1 Representations and Warranties............  41
     Section 10.2 Performance of Covenants..................  41
     Section 10.3 No Governmental or Other
                  Proceeding or Litigation..................  41
     Section 10.4 Approvals and Consents....................  42
     Section 10.5 Opinion of Counsel........................  42
     Section 10.6 Certificates..............................  42
     Section 10.7 Employment Agreements.....................  42

ARTICLE XI - CLOSING........................................  42

ARTICLE XII - INDEMNITY AND ESCROW..........................  43

     Section 12.1 Indemnification...........................  43
     Section 12.2 Escrow of Shares..........................  43
     Section 12.3 Remedies..................................  43


                                  -iii-

<PAGE>

                             TABLE OF CONTENTS
                                (CONTINUED)


                                                            Page
                                                            ----
     Section 12.4 Terms of Escrow...........................  43
     Section 12.5 "Escrow Interest" Defined.................  45
     Section 12.6 Microgyn Shareholders'
                  Representatives...........................  45
     Section 12.7 Mechanics of Making Claims................  45
     Section 12.8 Escrow Agent's Duties.....................  46

ARTICLE XIII - TERMINATION..................................  47

     Section 13.1 Termination and Abandonment...............  47
     Section 13.2 Effect of Termination.....................  48

ARTICLE XIV - MISCELLANEOUS PROVISIONS......................  49

     Section 14.1 Amendment and Modification................  49
     Section 14.2 Waiver of Compliance......................  49
     Section 14.3 No Survival of Representations
                  and Warranties............................  49
     Section 14.4 Notices...................................  49
     Section 14.5 Assignment................................  50
     Section 14.6 Governing Law.............................  50
     Section 14.7 Parties in Interest.......................  50
     Section 14.8 Counterparts..............................  51
     Section 14.9 Headings and References...................  51
     Section 14.10 Entire Agreement.........................  51
     Section 14.11 Severability.............................  51
     Section 14.12 Other Remedies...........................  51
     Section 14.13 Further Assurances.......................  51
     Section 14.14 Absence of Third Party
                   Beneficiary Rights.......................  51
     Section 14.15 Mutual Drafting..........................  52



                                  -iv-

<PAGE>

                             TABLE OF CONTENTS
                                (CONTINUED)


                                                            Page
                                                            ----
EXHIBITS

Exhibit A           Form of Articles of Merger

Exhibit B-1,-2,-3   Forms of Non-Competition Agreement

Exhibit C           Form of Opinion of Microgyn Legal Counsel

Exhibit D           Form of Exchange and Escrow Agreement

Exhibit E           Form of Termination Agreement 

Exhibit F           Form of Opinion of Conceptus Legal Counsel

Exhibit G           Form of Consulting Agreement

Exhibit H           Form of Employment Agreement



                                 -v-

<PAGE>

                  AGREEMENT AND PLAN OF REORGANIZATION

     This Agreement and Plan of Reorganization (this "AGREEMENT") is entered 
into as of October 29, 1996, among Conceptus, Inc., a Delaware corporation 
("CONCEPTUS"), CPTS Acquisition Corporation, a Massachusetts corporation and 
a wholly-owned subsidiary of Conceptus ("SUB"), and Microgyn, Inc., a 
Massachusetts corporation ("MICROGYN").

                              RECITALS

     A.   The Boards of Directors of Conceptus, Sub and Microgyn have deemed 
it advisable that Conceptus and Microgyn combine their operations by a merger 
of Sub into Microgyn, under the terms and conditions hereinafter set forth 
(the "MERGER").

     B.   The Boards of Directors of Conceptus, Sub and Microgyn, have 
approved and adopted this Agreement and the Articles of Merger (as defined 
below).

     In consideration of the mutual representations, warranties, covenants 
and agreements herein contained and subject to the conditions and other terms 
herein contained, the parties hereto agree as follows:

                              ARTICLE I

                             THE MERGER

     Section 1.1    ACTIONS TO BE TAKEN.  Upon performance (or waiver) of all 
covenants and obligations of the parties contained herein and upon 
fulfillment (or waiver) of all conditions to the obligations of the parties 
contained herein, at the Effective Time (as defined below) and pursuant to 
the Massachusetts Business Corporation Law (the "MBCL") the following will 
occur:

          (a)  Sub will be merged with and into Microgyn, which will be the 
surviving corporation (the "SURVIVING CORPORATION"), and the separate 
existence and corporate organization of Sub will cease, and thereupon 
Microgyn and Sub will be a single corporation;

          (b)  Microgyn, as the Surviving Corporation, will succeed, insofar 
as permitted by law, to all rights, assets, liabilities and obligations of 
Sub in accordance with the MBCL;

          (c)  the Articles of Organization and Bylaws of Sub will be the 
Articles of Organization and Bylaws of the Surviving Corporation until 
amended as provided by law;

          (d)  The officers and directors of Sub will be the initial officers 
and directors of the Surviving Corporation at and after the Effective Time, 
each to hold office in accordance with the Articles of Organization and 
Bylaws of the Surviving Corporation.

     As soon as practicable after each condition to the obligations of 
Conceptus and Sub and Microgyn hereunder has been satisfied or waived, an 
Articles of Merger, in the form attached hereto as EXHIBIT A and properly 
completed and executed in accordance with the MBCL (the "ARTICLES OF MERGER") 
will be filed with the Secretary of State of the Commonwealth of 


<PAGE>

Massachusetts, together with all required certificates.  The Merger will 
become effective at the time and on the date the Articles of Merger is so 
filed.  The date and time when the Merger becomes effective is referred to 
herein as the "EFFECTIVE TIME."

     Section 1.2    COMMON STOCK OF SURVIVING CORPORATION. Following the 
Effective Time, all issued and outstanding shares of Common Stock of Sub will 
continue to be fully paid and nonassessable shares of Common Stock of the 
Surviving Corporation.  Each certificate of Sub evidencing ownership of any 
such shares will continue to evidence ownership of the same number of shares 
of Common Stock of the Surviving Corporation.

     Section 1.3    EFFECT ON MICROGYN'S CAPITAL STOCK.  

           At the Effective Time, by virtue of the Merger and without any 
action on the part of any holder thereof, all shares of the capital stock of 
Microgyn ("MICROGYN CAPITAL STOCK"), issued and outstanding immediately prior 
to the Effective Time (other than any shares cancelled or retired pursuant to 
Section 1.3(e) and other than Dissenting Shares (as defined below)) will 
cease to be outstanding and will be converted into, and each former holder 
thereof (excluding any holder of shares referred to in Section 1.3(e) or 
Dissenting Shares, a "MICROGYN SHAREHOLDER") shall thereafter be entitled to 
the following rights: 

          (a)   CASH PAYMENT.  Each Microgyn Shareholder shall have the right 
to receive in cash at the Closing, as defined below (or thereafter in 
accordance with Section 1.5(b)) an amount (rounded to the nearest cent, the 
"CASH PAYMENT") equal to the product of (i) $3,000,000 (subject to reduction 
pursuant to Section 7.2(a) below) multiplied by (ii) a fraction, the 
numerator of which shall be the number of shares of Microgyn Capital Stock 
held by such holder immediately prior to the Closing, as shall be set forth 
on a list of Microgyn Shareholders certified by the Clerk of Microgyn and 
delivered to Conceptus at the Closing, and the denominator of which shall be 
the  aggregate number of shares of Microgyn Capital Stock outstanding 
immediately prior to the Closing (such fraction being hereafter referred to 
as such holder's "PROPORTIONATE INTEREST").

          (b)   STOCK PAYMENT.  Subject to the indemnification and escrow 
provisions described in Section 1.5(c) and Article XII below, each Microgyn 
Shareholder shall have the right to receive, on the date six months following 
the Closing, shares of Common Stock of Conceptus, $0.003 par value per share 
(the "CONCEPTUS COMMON STOCK") equal to an amount determined by multiplying 
(i) an amount of shares of Conceptus Common Stock (the "INITIAL MERGER 
SHARES") determined by dividing (A) $1,000,000 by (B) the average closing 
price of the Conceptus Common Stock on the Nasdaq Stock Market (or any other 
exchange or dealer automated quotation system on which such stock shall be 
traded in lieu of trading on the Nasdaq Stock Market) for the twenty 
consecutive trading days ending on the second trading day prior to the date 
six months following the Closing (the "INITIAL AVERAGE PRICE"), by (ii) such 
holder's Proportionate Interest. The parties contemplate under Section 1.5(c) 
and Article XII that fifty percent (50%) of the Initial Merger Shares 
(rounded down to the nearest whole share) will be deposited into escrow to 
secure certain indemnification obligations of the Microgyn Shareholders.


                                     -2-

<PAGE>

          (c)  CONTINGENT STOCK PAYMENT.  Subject to the conditions set forth 
in this Section 1.3(c), each Microgyn Shareholder shall have the right to 
receive, within thirty (30) days following the last day (the "THRESHOLD 
DATE") of the twelfth (12th) full calendar month following the first 
commercial sale of a Microgyn Product by Conceptus or its distributor(s) in 
the United States, that number of shares of Conceptus Common Stock equal to 
an amount determined by multiplying (i) an amount of shares of Conceptus 
Common Stock (the "CONTINGENT MERGER SHARES" and together with the Initial 
Merger Shares, the "MERGER SHARES") determined by dividing (A) $1,000,000 by 
(B) the average closing price of the Common Stock on the Nasdaq Stock Market 
for the twenty consecutive trading days ending on the second trading day 
prior to the Threshold Date, by (ii) such holder's Proportionate Interest.  
Conceptus's stock issuance obligations under this Section are contingent upon 
satisfaction of the following conditions: (i) net sales revenues to Conceptus 
from sales of Microgyn Products during calendar year 1997 (including both 
domestic and international sales) must be greater than $200,000 and (ii) net 
sales revenues (including both domestic and international sales) to Conceptus 
from sales of Microgyn Products during the first twelve full calendar months 
following the initial domestic commercial sale of a Microgyn Product by 
Conceptus must be greater than $3,500,000.  For purposes of this Section 1.3 
only, (i) a "commercial sale" shall mean the sale of a product for income 
generation purposes other than in connection with research and development, 
pre-clinical or clinical trial applications, a "Microgyn Product" shall mean 
any product sold by Conceptus, Microgyn or any of their subsidiaries or 
affiliates that either (i) includes any of the technology owned or licensed 
by Microgyn on the Closing Date or (ii) is one of the Microgyn Products 
listed on the Microgyn Disclosure Schedule, and "net sales revenues" shall 
mean gross revenues less returns and customary and ordinary customer 
allowances and shall be calculated in accordance with the generally accepted 
accounting principles.

          (d)  EARN-OUT PAYMENTS.  

               (i)  Subject to the conditions set forth in this subsection 
(d), the Microgyn Shareholders shall have the right to receive "earn-out 
payments" (the "EARN-OUT PAYMENTS") in the aggregate equal to a percentage of 
the Earn-Out Margin (as defined below) from sales of Microgyn Products by 
Microgyn, Conceptus or any of their subsidiaries or affiliates associated 
with Microgyn's operations on an annual basis for calendar years 1997-2001, 
as follows:  (a)  for any such calendar year in which the Earn-Out Margin is 
greater than 75% of the Earn-Out Margin forecasted by Microgyn in its Pro 
Forma Income Statements issued as part of  Microgyn's current business plan 
dated July 1996 (the "MICROGYN BUSINESS PLAN"), a copy of which has been 
provided to Conceptus, Conceptus will pay to the Microgyn Shareholders an 
aggregate amount equal to 7% of the Earn-Out Margin for such calendar year, 
and (b) if, at the end of any such calendar year, the cumulative Earn-Out 
Margin (for years 1997 through such year) is greater than 75% of the 
cumulative Earn-Out Margin forecasted in the Microgyn Business Plan for the 
same period, Conceptus will pay to the Microgyn Shareholders an aggregate 
amount equal to 7% of the Earn-Out Margin for all periods, including the year 
just completed, as to which no Earn-Out Payment has yet been made.  In 
addition, in the event that the first commercial sale of a Microgyn Product 
by Conceptus, its affiliates or distributors anywhere in the world occurs on 
or before June 30, 1997, then Conceptus shall pay to the Microgyn 
Shareholders Earn-Out Payments for the first calendar quarter of calendar 
year 2002 equal to 7% of the Earn-Out Margin


                                     -3-

<PAGE>

for such period provided that the Earn-Out Margin for such calendar quarter 
is greater than 18.75% of the Earn-Out Margin forecasted in the Microgyn 
Business Plan for calendar year 2001. Nothing in the preceding sentence shall 
be interpreted to cause Conceptus to pay to the Microgyn Shareholders more 
than 7% of the Earn-Out Margin for any such year or period.  "EARN-OUT 
MARGIN" is defined as gross profit (net sales revenues less cost of goods 
sold for Microgyn Products) less those research and development expenses 
(including expenses for regulatory and clinical affairs) incurred 
specifically relating to Microgyn Products.

               (ii) Conceptus will pay Earn-Out Payments within 45 days 
following the end of each year (or other applicable period).  The Earn-Out 
Payments will be made in cash and/or shares of Conceptus Common Stock, at the 
option of Conceptus.  To the extent that Conceptus chooses to fund any such 
Earn-Out Payments in whole or in part with shares of Conceptus Common Stock, 
such shares will be valued based on the average closing price of the Common 
Stock on the Nasdaq Stock Market for the twenty consecutive trading days 
ending on the second trading day prior to the payment date for such Earn-Out 
Payment and any such shares so issued shall be deemed included in the 
definition of "Merger Shares" under this Agreement. The Earn-Out Payments 
shall be made as follows: the aggregate Earn-Out Payment for each such period 
shall be multiplied by the cumulative Proportionate Interests of the Microgyn 
Shareholders entitled to receive such payments and the product thereof shall 
be paid (a) fifty percent (50%) to Medical Scientific, Inc. ("MSI") and (b) 
fifty percent (50%) to the remaining Microgyn Shareholders (excluding MSI), 
to be allocated in proportion to their relative Proportionate Interests.  

               (iii)     An Advisory Committee (the "ADVISORY COMMITTEE") 
consisting of four inviduals, two representatives of Conceptus and two 
representatives of the Microgyn Shareholders, who shall initially be Keith 
Isaacson, M.D. and Paul Nardella until otherwise reconstituted by the written 
consent of the Representatives (as defined in Section 12.6 below) and 
Conceptus. The Advisory Committee shall (a) review the status of ongoing 
Microgyn development projects and project budgets, (b) review the annual 
Microgyn project plan and related project allocations, and (c) participate in 
the quarterly planning meetings between Microgyn and MSI.  Covenants with 
respect to the conduct of Microgyn's business following the Effective Time 
are contained in Article V hereof.

          (e)  CANCELLED SHARES.  Each share of Microgyn Capital Stock which, 
immediately prior to the Effective Time, was issued and held in the treasury 
of Microgyn or was issued and outstanding and held by Conceptus, Sub or 
Microgyn will be cancelled or retired and no payments will be made with 
respect thereto.

          (f)  DISSENTING SHARES.  Notwithstanding anything in this Agreement 
to the contrary, shares of Microgyn capital stock which are held by any 
person or entity exercising the appraisal rights delineated in Sections 85-98 
of the MBCL or which remain eligible at the Effective Time to exercise such 
rights (collectively, "DISSENTING SHARES") will not (except as provided 
below) be converted into or represent a right to receive any consideration 
described in Sections 1.3(a)-(d), but the holders thereof will be entitled 
only to such rights as are granted by the MBCL.  Each holder of Dissenting 
Shares who becomes entitled to payment therefor pursuant


                                     -4-

<PAGE>

to the MBCL will receive payment from the Surviving Corporation in accordance 
with the MBCL; PROVIDED, HOWEVER, that (i) if any such holder of Dissenting 
Shares shall have failed to establish his entitlement to dissenter's rights 
as provided in the MBCL, (ii) if any such holder of Dissenting Shares shall 
have effectively withdrawn his demand for purchase thereof or lost his right 
to purchase and payment therefor under the MBCL, or (iii) if neither any 
holder of Dissenting Shares nor the Surviving Corporation shall have filed a 
petition demanding a determination of the value of all Dissenting Shares 
within the time provided in the MBCL, such holder or holders (as the case may 
be) shall forfeit the right to demand repurchase with respect to such shares 
of Microgyn capital stock and such shares of Microgyn shall thereupon be 
deemed to have been converted, as of the Effective Time, into and represent 
the right to receive the consideration described in Sections 1.3(a)-(d).  
Microgyn will give Conceptus prompt notice of any written demands for 
purchase and any other instruments served pursuant to Sections 85-98 of the 
MBCL and received by Microgyn and will cooperate with Conceptus in any 
negotiations or proceedings with respect to demands for purchase under the 
MBCL. Microgyn will not, without the written consent of Conceptus, 
voluntarily make any payment with respect to any demands for purchase or 
offer to settle or settle any such demands.

          (g)  ACCOUNTING DETERMINATIONS.  Accounting determinations 
regarding the business of Microgyn with respect to Sections 1.3(c) and 1.3(d) 
above will be made by the Board of Directors of the Surviving Corporation in 
accordance with generally accepted accounting principles.  If the 
Representatives (as defined in Section 12.6 below) object to material 
accounting decisions affecting the Contingent Merger Shares or the Earn-Out 
Payments, Conceptus will appoint an independent "Big Six" public accounting 
firm satisfactory to Conceptus and the Representatives to decide the proper 
accounting treatment.  Such firm's decision will be final.  Any objections or 
claims of the Representatives based on accounting determinations or 
principles shall be made by the Representatives in writing within 60 days 
after the Representatives receive statements reflecting such determination or 
otherwise receive notice of such determination.  Any such objections or 
claims shall be waived unless asserted within such 60-day period.  Conceptus 
shall pay one-half (1/2) of the cost of retaining such accounting firm and 
one-half (1/2) of the cost of retaining such accounting firm shall be 
deducted from the aggregate dollar amount of Contingent Merger Shares or the 
aggregate Earn-Out Payments for the period(s) in question, as applicable.  
Such accounting firm shall be governed by the terms of this Agreement which 
shall control their deliberations and otherwise by generally accepted 
accounting principles.

          (h)  ALTERNATIVE PAYMENT.  If, on any payment date set forth in 
Sections 1.3(a-d) above on which Merger Shares would otherwise be issued, 
Conceptus does not at such time have in place a permit from the California 
Department of Corporations qualifying the issuance of such shares such that 
they are exempt under Section 3(a) of the Securities Act of 1933, as amended 
(the "SECURITIES ACT") and resaleable pursuant to the provisions of Rule 145 
promulgated under the Securites Act without application of any holding period 
other than as specifically noted in such rule ("145 RESALEABLE"), Conceptus 
shall pay to the Microgyn Shareholders an amount in cash equivalent to the 
value of the Merger Shares which would otherwise have been issued pursuant to 
such provisions (calculated in accordance with the trailing averages set 
forth therein); provided that, Conceptus shall not be obligated to do so if 
such a permit is not necessary to make such shares 145 resaleable or 
otherwise allow for them to be resold in a manner no more restrictive than as 
provided for in Rule 145 and provided, further, that the foregoing obligation 
to


                                     -5-

<PAGE>

pay cash shall not apply in the event that Section 7.6(b) (regarding the 
approval of the initial Permit Application or the grant of the Hearing, as 
defined in Article VI) becomes effective.

     Section 1.4    NO FRACTIONAL INTERESTS.  Neither certificates nor scrip 
for fractional interests in the Conceptus Merger Shares issued pursuant to 
Section 1.3(b), (c) or (d) hereof will be issued, but in lieu thereof each 
holder who would otherwise have been entitled pursuant to Section 1.3(b),(c) 
or (d) hereof to a fraction of a share of Conceptus Common Stock will be paid 
an amount in cash equal to such fraction multiplied by the applicable average 
closing price of such stock for the twenty trading days ending on the second 
trading day prior to the date on which such stock would otherwise have been 
issued.

     Section 1.5    ISSUANCE AND DELIVERY OF MERGER CONSIDERATION.

          (a)  As promptly as practicable following the execution of this 
Agreement and in any event not later than the Closing, Conceptus shall 
appoint an entity reasonable acceptable to Microgyn to act as Exchange Agent 
(the "EXCHANGE AGENT") hereunder.  As soon as practicable prior to the time 
deadlines in Sections 1.3(b), 1.3(c), and 1.3(d), Conceptus will issue and 
deliver to the Exchange Agent certificates ("NEW CERTIFICATES") representing 
a sufficient number of shares of Conceptus Common Stock for issuance pursuant 
to Sections 1.3(b), 1.3(c) and 1.3(d) hereof.  In addition, Conceptus will 
deliver to the Exchange Agent, when required, checks sufficient to settle the 
payment for any unpaid Cash Payments, applicable Earn-Out Payments and 
payments for fractional interests.

          (b)  Unless delivered to Conceptus at the Closing, as soon as 
practicable following the Effective Time, the Microgyn Shareholders shall 
deliver to the Exchange Agent executed transmittal letters, together with 
their original Microgyn stock certificate(s) (the "OLD CERTIFICATES") and 
such other documentation as the Exchange Agent may reasonably require to 
effect the exchange.    Upon receipt of such transmittal letters and Old 
Certificates, the Exchange Agent will, as promptly as practicable, deliver to 
each holder of such surrendered Microgyn certificates, a check in the amount 
of the proportional Cash Payment due such holder pursuant to 1.3(a) above (to 
the extent that such checks were not delivered to such holder(s) at the 
Closing), and, if and at such times as called for under Sections 1.3(b), (c) 
and (d), New Certificates representing the number of shares of Conceptus 
Common Stock (or in the case of Earn-Out Payments to be paid in cash, checks 
in such amounts) to which the Microgyn Shareholder is entitled, together with 
checks for payment of cash in lieu of fractional interests to be issued in 
respect of the Old Certificates.  Conceptus will deliver to the Exchange 
Agent, when required, cash sufficient to settle the payment for fractional 
interests.

          (c)  On or before the date six months following the Effective Time, 
in accordance with Article XII hereof, Conceptus will cause fifty percent 
(50%) of the aggregate number of Initial Merger Shares (rounded down to the 
nearest whole share, the "ESCROW SHARES"), to be deposited in the Escrow 
Fund.  Such shares shall be issued in the name of the applicable escrow agent 
or its nominee for the benefit of the holders of the Microgyn Shareholders.


                                     -6-

<PAGE>

          (d)  Until Old Certificates have been surrendered and exchanged as 
herein provided for Cash Payments and New Certificates, each outstanding Old 
Certificate will be deemed for all corporate purposes of Conceptus, other 
than the payment of dividends or any distributions, to evidence the right to 
receive such Cash Payment(s) and, after the date six months following the 
Closing, ownership of the number of Merger Shares into which the number of 
shares of Microgyn Capital Stock shown thereon have been converted pursuant 
to Section 1.3 hereof.  No dividends or other distributions declared on 
Conceptus Common Stock will be paid to persons otherwise entitled to receive 
the same until the Old Certificates have been surrendered in exchange for New 
Certificates in the manner herein provided, but upon such surrender, such 
dividends or other distributions will be paid to such persons in accordance 
with the terms of such securities.  In no event will the persons entitled to 
receive such dividends or other distributions be entitled to receive interest 
on such dividends or other distributions.  From and after the Effective Time, 
Conceptus will, however, be entitled to treat Old Certificates which have not 
yet been surrendered for exchange as evidencing the ownership of the 
corresponding number of shares of Merger Shares, notwithstanding any failure 
to surrender such Old Certificates.

          (e)  No transfer taxes will be payable by any shareholder of 
Microgyn in connection with the exchange of Old Certificates for New 
Certificates, except that if any New Certificate is to be issued in a name 
other than that in which the Old Certificate surrendered in exchange therefor 
is registered, it will be a condition of such exchange that the person 
requesting such exchange will pay to the Exchange Agent any transfer or other 
taxes required by reason of the issuance of the New Certificate in a name 
other than the registered holder of the Old Certificate, or will establish to 
the satisfaction of the Exchange Agent that such tax has been paid or is not 
applicable.

          (f)  In the event that the appointment of the Exchange Agent is 
terminated, following such termination, Old Certificates will be surrendered 
to, and Cash Payments, Earn-Out Payments and New Certificates delivered by, 
Conceptus or its agent.  If outstanding Old Certificates are not surrendered 
prior to two years after the Effective Time (or, in any particular case, 
prior to such earlier date on which dividends or other distributions, if any, 
would otherwise escheat to or become the property of any governmental unit or 
agency), the amount of dividends and other distributions, if any, which have 
become payable and which thereafter become payable on Merger Shares evidenced 
by such Old Certificates as provided herein will, to the extent permitted by 
applicable law, become the property of the Surviving Corporation (and, to the 
extent not in its possession, will be paid over to it by Conceptus), free and 
clear of all claims or interest of any person previously entitled thereto.

     Section 1.6    STOCK TRANSFER BOOKS.  At the Effective Time, the stock 
transfer books of Microgyn will be closed and no transfer of Microgyn Capital 
Stock will thereafter be made.

     Section 1.7    SHAREHOLDERS' MEETING.

          (a)  As soon as practicable after the receipt by Conceptus of 
approval for mailing of the Notice of Hearing from the California Department 
of Corporations with respect to the issuance of the Merger Shares in 
connection with the Merger, the Board of Directors of Microgyn will duly 
call, and cause to be held, a special meeting of the shareholders of Microgyn 


                                     -7-

<PAGE>

(the "MICROGYN SPECIAL MEETING") for the purpose of approving this Agreement 
and the Merger and will recommend the approval of this Agreement and the 
Merger to the Microgyn shareholders, which recommendation shall not be 
withheld, withdrawn or modified unless, in the good faith judgment of the 
Microgyn Board of Directors based on the advice of its legal counsel set 
forth in a written opinion or memorandum, such action is required to comply 
with the fiduciary duty of the Board under applicable law.

          (b)  Conceptus and Microgyn will coordinate and cooperate with 
respect to the timing of the Microgyn Special Meeting.

          (c)  Microgyn will, subject to Section 4.7, use its best efforts to 
solicit from its shareholders proxies in favor of the matters set forth in 
Section 1.7(a) and take all other action necessary or advisable to secure the 
vote or consent of its shareholders required by the MBCL.

     Section 1.8    FILING OF MERGER DOCUMENTS.  As soon as practicable after 
the requisite approval of the shareholders of Microgyn has been obtained as 
provided in Section 1.7, and each other condition to the obligations of 
Conceptus and Sub and Microgyn hereunder has been satisfied or waived, 
Microgyn and Sub will deliver the Articles of Merger for filing with the 
Secretary of State of the Commonwealth of Massachusetts and Conceptus and Sub 
and Microgyn will take such other and further actions as may be required by 
the MBCL in connection with such filing and the consummation of the Merger.

     Section 1.9    MERGER OF SURVIVING CORPORATION AND CONCEPTUS.  Following 
the Merger, Conceptus may but shall not be obligated to cause the Surviving 
Corporation to merge with and into Conceptus, with Conceptus the surviving 
corporation of that merger (the "SUBSEQUENT MERGER").


                             ARTICLE II

                   REPRESENTATIONS AND WARRANTIES
                             OF MICROGYN

     As of the date hereof, except as disclosed in a document referring 
specifically to the relevant subsections of this Article II which is 
delivered by Microgyn to Conceptus prior to execution of this Agreement (the 
"MICROGYN DISCLOSURE SCHEDULE") Microgyn hereby represents and warrants to 
Conceptus and Sub, which representations, to the extent to that they refer to 
the "knowledge" of Microgyn, shall be deemed to encompass the individual 
knowledge of each officer and director of Microgyn, as follows:

     Section 2.1    CORPORATE ORGANIZATION. Microgyn is a corporation duly 
organized, validly existing and in good standing under the laws of its state 
of incorporation and has all requisite corporate power and authority and all 
necessary governmental authorizations to own, lease and operate its 
properties and to conduct its business as it is now being conducted.  
Microgyn has no Subsidiaries (as defined below). Microgyn is duly qualified 
or licensed to do business and is in good standing as a foreign corporation 
in each state or other jurisdiction in which the nature of its business or 
operations or ownership of its property requires such qualification or 
licensing, except


                                     -8-

<PAGE>

where the failure to be so qualified or licensed would not, individually or 
in the aggregate, materially and adversely affect the condition (financial or 
other), business, properties, prospects (as currently contemplated), net 
worth or results of operations of Microgyn taken as a whole (collectively, 
"MICROGYN'S BUSINESS").  The minute book of Microgyn, as made available to 
Conceptus, contain complete and accurate records of all corporate action 
taken by Microgyn since its date of incorporation.  Microgyn has no direct or 
indirect interest in or loans to any partnership, corporation, joint venture, 
business association or other entity other than MSI under the agreements set 
forth in the Microgyn Disclosure Schedule (the "MSI AGREEMENTS").  Microgyn 
has delivered to Conceptus complete and correct copies of the Articles of 
Organization and Bylaws (or other organizational or charter documents) of 
Microgyn, in each case as amended to the date hereof.  As used in this 
Agreement, the term "SUBSIDIARY" means a "subsidiary" as defined in Rule 1.01 
in Regulation S-X promulgated under the Securities Act.

     Section 2.2    CAPITAL STRUCTURE.  The authorized capital stock of 
Microgyn consists of 100,000 shares of Series A Voting Common Stock, $0.001 
par value per share and 50,000 shares of Series B Nonvoting Common Stock, 
$0.001 par value per share (collectively, the "MICROGYN COMMON STOCK"), 
50,000 shares of Preferred Stock, $0.001 par value per share (the "MICROGYN 
PREFERRED STOCK" and collectively with the Microgyn Common Stock, the 
"MICROGYN CAPITAL STOCK").  Upon execution of this Agreement on the date 
hereof by Microgyn, there were outstanding 79,999 shares of Microgyn Series A 
Voting Common Stock, and no shares of outstanding Microgyn Series B Nonvoting 
Common Stock or Preferred Stock.  No shares of Microgyn Common Stock were 
reserved for issuance upon the exercise of outstanding employee stock 
options.  All outstanding shares of Microgyn Capital Stock are validly 
issued, fully paid and nonassessable and not subject to preemptive rights 
created by statute, Microgyn's Articles of Organization or Bylaws or any 
agreement to which Microgyn is a party or by which Microgyn may be bound.  
All outstanding shares of Microgyn Capital Stock have been issued in 
compliance with all applicable federal, state and foreign securities laws.  
Microgyn has provided Conceptus and its legal counsel with a complete and 
accurate list of (a) all issuances of Microgyn Capital Stock and (b) the 
names and addresses of all holders of Microgyn Capital Stock, together with 
the number of shares held by each holder. There are no options, warrants, 
calls, conversion rights, commitments or agreements of any character to which 
Microgyn is a party or by which any of them may be bound that do or may 
obligate Microgyn to issue, deliver or sell, or cause to be issued, delivered 
or sold, additional shares of Microgyn Capital Stock or that do or may 
obligate Microgyn to grant, extend or enter into any such option, warrant, 
call, conversion right, commitment or agreement. Microgyn is not under any 
obligation to register under the Securities Act any of its presently 
outstanding securities or any securities that may subsequently be issued.  
There are no agreements or understandings to which Microgyn is a party or, to 
the knowledge of Microgyn, any other agreements or understandings, with 
respect to the transfer or voting of shares of Microgyn Capital Stock.

     Section 2.3    NO OTHER AGREEMENTS TO SELL ASSETS, MERGE, ETC.  Except 
as provided hereby or in the MSI Agreements, Microgyn has no legal 
obligation, absolute or contingent, to any person or firm to sell assets 
other than in the ordinary course of business or to effect any merger, 
consolidation or reorganization of Microgyn or to enter into any agreement 
with respect thereto.


                                     -9-

<PAGE>

     Section 2.4    AUTHORIZATION; EXECUTION AND DELIVERY. Microgyn has all 
requisite corporate power and authority (a) to execute and deliver this 
Agreement, the Articles of Merger and the agreements attached as exhibits 
hereto to which Microgyn is a party (the "MICROGYN ANCILLARY AGREEMENTS"), 
(b) subject to the approval of this Agreement and the Articles of Merger by 
the holders of two-thirds of the outstanding shares of Microgyn Common Stock, 
voting as separate classes, to perform its obligations under this Agreement, 
the Articles of Merger and the Microgyn Ancillary Agreements, and (c) to 
consummate the transactions contemplated hereby and thereby.  The execution, 
delivery and performance of this Agreement, the Articles of Merger and the 
Microgyn Ancillary Agreements by Microgyn and the consummation by Microgyn of 
the transactions contemplated hereby and thereby have been duly approved and 
authorized by all requisite corporate action of Microgyn, subject to 
obtaining any necessary approval of its shareholders.  This Agreement has 
been duly executed and delivered by Microgyn and, subject to obtaining any 
necessary approval of holders of two-thirds of the outstanding shares of 
Microgyn Common Stock, and assuming its due authorization, execution and 
delivery by Conceptus and Sub, constitutes the legal, valid and binding 
obligation of Microgyn, enforceable in accordance with its terms.  The Board 
of Directors of Microgyn has unanimously determined that it is advisable and 
in the best interest of Microgyn's shareholders for Microgyn to enter into a 
strategic business combination with Conceptus upon the terms and subject to 
the conditions of this Agreement.

     Section 2.5    GOVERNMENTAL APPROVALS AND FILINGS.  No approval, 
authorization, consent, license, clearance or order of, declaration or 
notification to, or filing, registration or compliance with, any governmental 
or regulatory authority ("GOVERNMENTAL ENTITY") is required on the part of 
Microgyn in order (a) to permit Microgyn to perform its obligations under 
this Agreement or (b) to prevent the termination of any right, privilege, 
license or agreement of Microgyn, or to prevent any loss to Microgyn's 
Business, by reason of the transactions contemplated by this Agreement, 
except for the filing of the Articles of Merger as required by the MBCL.

     Section 2.6    NO CONFLICT.  Except for the receipt of any required 
approval of the shareholders of Microgyn as contemplated by Section 1.7(a) 
hereof, and compliance with the governmental and regulatory requirements 
described in Section 2.5 hereof, neither the execution, delivery and 
performance of this Agreement, the Articles of Merger and the Microgyn 
Ancillary Agreements by Microgyn nor the consummation by Microgyn of the 
transactions contemplated hereby and thereby, including the Subsequent 
Merger, will (a) conflict with, or result in a breach of, any of the terms, 
conditions or provisions of Microgyn's Articles of Organization or Bylaws (or 
other organizational or charter documents), (b) conflict with, result in a 
breach or violation of, give rise to a termination right or a default under, 
result in the acceleration of performance under (whether or not after the 
giving of notice or lapse of time or both), any mortgage, lien, lease, 
agreement, note, bond, indenture, guarantee or instrument or any license or 
franchise granted by or to a third party, in each case, that is material to 
Microgyn's Business or that is referenced in the Microgyn Disclosure 
Schedule, (c) conflict with, or result in a violation of, any statute, 
regulation, law, ordinance, writ, injunction, order, judgment or decree to 
which Microgyn or any of their assets may be subject, (d) give rise to a 
declaration or imposition of any lien, charge, security interest or 
encumbrance of any nature whatsoever upon any of the assets of Microgyn, (e) 
adversely affect any franchise, license, permit or other governmental 
approval which is material to Microgyn's Business or is necessary to enable 
Microgyn to carry on its business as


                                     -10-

<PAGE>

presently conducted or is required of any employee or agent of Microgyn to 
enable each of them to carry out such person's duties on behalf of Microgyn 
or (f) require the consent of any third party.

     Section 2.7    FINANCIAL STATEMENTS; ABSENCE OF UNDISCLOSED LIABILITIES.

          (a)  Microgyn has furnished Conceptus with the cash basis balance 
sheet at September 30, 1996 (collectively, the "MICROGYN FINANCIAL 
STATEMENTS").  The Microgyn Financial Statements (i) are in accordance with 
the respective books of Microgyn; (ii) present fairly the financial position 
of Microgyn as of the date thereof and the consolidated results of operations 
and cash flows of Microgyn for the periods indicated therein; and (iii) do 
not reflect any material items of nonrecurring income except as stated 
therein.  Since inception, there has been no change in Microgyn's accounting 
principles, methods or policies.

          (b)  Microgyn has no liabilities of any nature, whether accrued, 
absolute, contingent or otherwise, and whether due or to become due, which 
were not disclosed or provided for in the Microgyn Disclosure Schedule or the 
Microgyn Financial Statements other than obligations and liabilities incurred 
since September 30, 1996 which are not individually or in the aggregate, 
material to Microgyn's Business.

          (c)  Microgyn makes and keeps accurate books and records reflecting 
in all material respects its assets and maintains internal accounting 
controls which provide reasonable assurance that (i) transactions are 
executed in accordance with management's authorization, (ii) transactions are 
recorded to permit preparation of Microgyn's financial statements and to 
maintain accountability in all material respects for the assets of Microgyn, 
(iii) access to the assets of Microgyn are permitted only in accordance with 
management's authorization, and (iv) the recorded accountability of the 
assets of Microgyn is compared with existing assets at reasonable intervals.

     Section 2.8    ABSENCE OF CHANGES.  Since September 30, 1996 (a) there 
has been no material adverse change in Microgyn's Business or any development 
as to Microgyn known to Microgyn that is reasonably expected to cause a 
material adverse change in Microgyn's Business; (b) there has been no damage, 
destruction or loss (whether or not covered by insurance) materially and 
adversely affecting any assets material to Microgyn's Business; (c) there has 
been no change by Microgyn in accounting principles or methods except insofar 
as may be required by a change in generally accepted accounting principles; 
(d) there has been no revaluation by Microgyn of any of its assets, 
including, without limitation, writing down the value of inventory or writing 
off notes or accounts receivable; (e) Microgyn has conducted its business 
only in the ordinary course consistent with past practice; and (f) no event 
described in Section 4.2 or Section 4.3 hereof has occurred.

     Section 2.9    CONTRACTS AND COMMITMENTS.  Except for agreements 
disclosed on the Microgyn Disclosure Schedule:

          (a)  Microgyn is not a party or subject to:


                                     -11-

<PAGE>

                (i)  Any union contract or collective bargaining agreement or 
any employment contract or arrangement, written or oral, providing for future 
compensation with any officer, consultant, director or employee which is not 
terminable by it on 30 days' notice or less without penalty or obligation to 
make payments related to such termination, other than (A) (in the case of 
employees other than executive officers) such severance agreements as are not 
different from standard arrangements offered to employees generally in the 
ordinary course of business consistent with Microgyn's past practices, a 
description of which is set forth in the Microgyn Disclosure Schedule and (B) 
such agreements as may be imposed or implied by law;

                 (ii)   Any plans, contracts or arrangements, written or 
oral, which collectively require aggregate payments by Microgyn in excess of 
$25,000 for bonuses, pensions, deferred compensation, severance pay or 
benefits, retirement payments, profit-sharing, or the like;

                 (iii)   Any joint marketing, joint development or joint 
venture contract or arrangement or any other agreement which has involved or 
is expected to involve a sharing of profits with other persons;

                  (iv)   Any existing OEM agreement, distribution agreement, 
volume purchase agreement, or other similar agreement in which the annual 
amount involved is expected to exceed in 1996 or any subsequent year, $5,000 
or pursuant to which Microgyn has granted or received most favored customer 
provisions or exclusive marketing rights related to any product, group of 
products or territory;

                   (v)   Any lease for real or personal property pursuant to 
which the amount of payments which Microgyn is required to make on an annual 
basis exceeds $5,000;

                   (vi)  Any agreement, contract, mortgage, indenture, lease, 
instrument, license, franchise, permit, concession, arrangement, commitment 
or authorization which may be, by its terms, terminated or breached by reason 
of the execution of this Agreement, the Articles of Merger or any Microgyn 
Ancillary Agreement, the closing of the Merger, or the consummation of the 
transactions contemplated hereby or thereby, including the Subsequent Merger;

                   (vii)   Except for trade indebtedness incurred in the 
ordinary course of business, any instrument evidencing or related in any way 
to indebtedness in excess of $5,000 incurred in the acquisition of companies 
or other entities or indebtedness in excess of $5,000 for borrowed money by 
way of direct loan, sale of debt securities, purchase money obligation, 
conditional sale, guarantee, indemnification or otherwise;

                   (viii)  Any license agreement, either as licensor or 
licensee;

                   (ix)    Any contract containing covenants purporting to 
limit Microgyn's freedom to compete in any line of business or in any 
geographic area or with any third party; 

                   (x)     Any agreement, contract or commitment relating 
to capital expenditures and involving future obligations in excess of $5,000; 
or 


                                     -12-

<PAGE>

                   (xi)   Any other agreement, contract or commitment which 
is material to Microgyn's Business.

          (b)  Each agreement, contract, mortgage, indenture, plan, lease, 
instrument, permit, concession, franchise, arrangement, license and 
commitment listed in the Microgyn Disclosure Schedule is valid and binding on 
Microgyn and is in full force and effect, and neither Microgyn nor, to the 
knowledge of Microgyn, any other party thereto, has breached any material 
provision of, or is in default under the terms of, any such agreement, 
contract, mortgage, indenture, plan, lease, instrument, permit, concession, 
franchise, arrangement, license or commitment.

          (c)  There is no agreement, judgment, injunction, order or decree 
binding upon Microgyn which has or could reasonably be expected to have the 
effect of prohibiting or materially impairing any material current business 
practice of Microgyn, any acquisition of material property by Microgyn or the 
conduct of business by Microgyn as currently conducted or as proposed to be 
conducted by Microgyn in the Microgyn Business Plan.

     Section 2.10   LEGAL PROCEEDINGS. Microgyn is not in violation of, and 
has not received any notice of any violation of (a) any applicable statute, 
law, regulation, ordinance, writ, injunction, order, judgment or decree, the 
effect of which violation could, individually or in the aggregate, be 
materially adverse to Microgyn's Business, or (b) any provision of the 
Articles of Organization or Bylaws (or other organizational or charter 
document) of Microgyn.  There is no order, writ, injunction, judgment or 
decree outstanding, and no legal, administrative, arbitration or other 
proceeding, action, suit or governmental investigation or inquiry against or 
relating to Microgyn or its assets or business ("MICROGYN LEGAL PROCEEDINGS") 
pending or, to the knowledge of Microgyn, threatened and, to the knowledge of 
Microgyn, there are no claims (including unasserted claims as to which there 
has been a manifestation by a potential claimant of an awareness of such 
claim or it is considered probable that a claim will be asserted and there is 
a reasonable possibility that the outcome will be unfavorable, all as such 
terms are used in Statement of Financial Accounting Standards No. 5), against 
or relating to Microgyn or its assets or business, which pending or 
threatened Microgyn Legal Proceedings or claims would reasonably be expected 
to have, individually or in the aggregate, a material adverse effect on 
Microgyn's Business.  There is no Microgyn Legal Proceeding which in any 
manner challenges or seeks to prevent, enjoin, alter or delay any of the 
transactions contemplated hereby.  There are no existing liabilities that 
require Microgyn to indemnify its officers and directors for acts or 
omissions by such persons or existing agreements to provide indemnification 
for such liabilities.  The Microgyn Disclosure Schedule sets forth with 
respect to each Microgyn Legal Proceeding, to the extent that the aggregate 
remedies or damages claimed for each such complaint are unspecified, involve 
specific performance or injunctive relief or exceed $25,000, the forum, the 
parties thereto, a brief description of the subject matter thereof and the 
amount of damages claimed.

     Section 2.11   ERISA MATTERS.  Microgyn and any trade or business 
(whether or not incorporated) which is treated as a single employer with 
Microgyn (an "ERISA AFFILIATE") within the meaning of Section 414(b), (c), 
(m) or (o) of the Internal Revenue Code of 1986, as amended (the "CODE"), has 
no (i) material employee benefit plans (as defined in Section 3(3) of the 
Employee Retirement Income Security Act of 1974, as amended ("ERISA")), (ii) 
loans to any

                                     -13-

<PAGE>

non-officer employee in excess of $5,000, loans to officers and directors and 
any stock option, stock purchase, phantom stock, stock appreciation right, 
supplemental retirement, severance, sabbatical, medical, dental, vision care, 
disability, employee relocation, cafeteria benefit (Code section 125) or 
dependent care (Code Section 129), life insurance or accident insurance 
plans, programs or arrangements, (iii) bonus, pension, profit sharing, 
savings, deferred compensation or incentive plans, programs or arrangements, 
(iv) other fringe or employee benefit plans, programs or arrangements that 
apply to senior management of Microgyn and that do not generally apply to all 
employees, or (v) except as set forth in the Microgyn Disclosure Schedule, 
current or former employment or executive compensation or severance 
agreements, written or otherwise, as to which unsatisfied obligations of 
Microgyn of greater than $5,000 remain for the benefit of, or relating to, 
any present or former employee, consultant or director of Microgyn (together, 
the "MICROGYN EMPLOYEE PLANS").

     Section 2.12   TAXES.

          (a)  For purposes of this Section 2.12 and other provisions of this 
Agreement relating to Taxes, the following definitions shall apply:

               (i)  The term "TAXES" shall mean all taxes, however 
denominated, including any interest, penalties or other additions to tax that 
may become payable in respect thereof, (A) imposed by any federal, 
territorial, state, local or foreign government or any agency or political 
subdivision of any such government, which taxes shall include, without 
limiting the generality of the foregoing, all income or profits taxes 
(including but not limited to, federal income taxes and state income taxes), 
payroll and employee withholding taxes, unemployment insurance, social 
security taxes, sales and use taxes, ad valorem taxes, excise taxes, 
franchise taxes, gross receipts taxes, business license taxes, occupation 
taxes, real and personal property taxes, stamp taxes, environmental taxes, 
transfer taxes, workers' compensation, Pension Benefit Guaranty Corporation 
premiums and other governmental charges, and other obligations of the same or 
of a similar nature to any of the foregoing, which are required to be paid, 
withheld or collected, (B) any liability for the payment of amounts referred 
to in (A) as a result of being a member of any affiliated, consolidated, 
combined or unitary group, or (C) any liability for amounts referred to in 
(A) or (B) as a result of any obligation to indemnify another person.

               (ii) The term "RETURNS" shall mean all reports, estimates, 
declarations of estimated tax, information statements and returns relating 
to, or required to be filed in connection with, any Taxes, including 
information returns or reports with respect to backup withholding and other 
payments to third parties.

          (b)  Microgyn has not been required to file any returns and has 
incurred no liability for taxes (including estimated taxes).  Microgyn has 
withheld and paid over all Taxes required to have been withheld and paid 
over, and complied with all information reporting and backup withholding 
requirements, including maintenance of required records with respect thereto, 
in connection with amounts paid or owing to any employee, creditor, 
independent contractor, or other third party.  There are no liens on any of 
the assets of Microgyn with respect to Taxes, other than liens for Taxes not 
yet due and payable or for Taxes that Microgyn is contesting in good faith 
through appropriate proceedings and for which appropriate reserves have been 


                                     -14-

<PAGE>

established. Microgyn has not at any time been a member of any partnership or 
joint venture for a period for which the statue of limitations for any Tax 
potentially applicable as a result of such membership has not expired.  No 
liability for Taxes of Microgyn will be incurred prior to Closing other than 
in the ordinary course of business.

          (c)  No deficiencies exist or have been asserted (either in writing 
or verbally, formally or informally) or are expected to be asserted with 
respect to Taxes of Microgyn, and Microgyn has not received notice (either in 
writing or verbally, formally or informally) nor expects to receive notice 
that it has not filed a Return or paid Taxes required to be filed or paid. 
Microgyn is not a party to any action or proceeding for assessment or 
collection of Taxes, nor has such event been asserted or threatened (either 
in writing or verbally, formally or informally) against Microgyn or any of 
its assets.  No waiver or extension of any statute of limitations is in 
effect with respect to Taxes or Returns of Microgyn.

          (d)  Microgyn is not (and has ever been) a party to any tax sharing 
agreement.

          (e)  Microgyn is not, nor has it been, a United States real 
property holding corporation within the meaning of Section 897(c)(2) of the 
Code during the applicable period specified in Section 897(c)(1)(A)(ii) of 
the Code, and Conceptus is not required to withhold tax by reason of Section 
1445 of the Code. Microgyn is not a "consenting corporation" under Section 
341(f) of the Code. Microgyn has not entered into any compensatory agreements 
with respect to the performance of services which payment thereunder would 
result in a nondeductible expense to Microgyn pursuant to Section 280G of the 
Code or an excise tax to the recipient of such payment pursuant to Section 
4999 of the Code. Microgyn has not agreed to, nor is it required to make, any 
adjustment under Code Section 481(a) by reason of, a change in accounting 
method, and Microgyn will not otherwise have any income reportable for a 
period ending after the Closing Date attributable to a transaction or other 
event (e.g., an installment sale) occurring prior to the Closing Date. 
Microgyn is not, nor has it been, a "reporting corporation" subject to the 
information reporting and record maintenance requirements of Section 6038A 
and the regulations thereunder.  Microgyn is in compliance with the terms and 
conditions of any applicable tax exemptions, agreements or orders of any 
foreign government to which it may be subject or which it may have claimed, 
and the transactions contemplated by this Agreement will not have any adverse 
effect on such compliance.

          (f)  Microgyn has no net operating losses and credit carryovers or 
other tax attributes that are currently subject to limitation under Sections 
382, 383 or 384 of the Code (or comparable provisions of state tax law).

     Section 2.13   INTELLECTUAL PROPERTY.

          (a)  Other than the rights of MSI and others set forth in the MSI 
Agreements, Microgyn owns or has the exclusive right to use, make, sell, 
license, or sublicense and bring actions for infringement of all Microgyn 
Products (as defined below) and Intellectual Property Rights (as defined 
below) developed by or for Microgyn or that are used or currently proposed to 
be used in the business of Microgyn as currently conducted or proposed to be 
conducted in the Microgyn Business Plan.  Although Microgyn has no knowledge 
of any such inventions or rights,


                                     -15-

<PAGE>

the parties acknowledge that an independent third party (without the 
assistance, involvement, permission or other complicity of Microgyn or its 
employees, officers or directors) may have the ability to practice inventions 
or rights relating to products in Microgyn's industry comparable to the 
Microgyn Products, which inventions or rights were independently developed by 
such party or licensed by such party from another independent third party to 
the extent that such inventions or rights do not contravene an issued patent 
or trademark, or application therefor, owned by or exclusively licensed to 
Microgyn.  All of the Microgyn Products and Microgyn Intellectual Property 
Rights are owned or licensed by Microgyn free and clear of any rights or 
claims of any former employees, consultants, officers and directors of 
Microgyn and current or former employers of all current and former employees, 
consultants, officers and directors of Microgyn other than the rights of MSI 
and others set forth in the MSI Agreements.  All taxes and fees, including, 
without limitation, patent and trademark registration and prosecution fees 
and all professional fees in connection therewith pertaining to the Microgyn 
Intellectual Property Rights, due and payable on or before the date hereof, 
have been paid by Microgyn except as set forth on the Microgyn Disclosure 
Schedule.

          (b)  Microgyn's current products and products under development are 
listed on the Microgyn Disclosure Schedule (collectively, the "MICROGYN 
PRODUCTS").  Other than the rights granted to MSI, no person has a license to 
make, use or distribute or the right to acquire such a license with respect 
to any current or future version of any Microgyn Product or any Microgyn 
Product that is under development, and no agreement to which Microgyn is a 
party will restrict the Surviving Corporation or Conceptus from charging 
customers for any such new version. Except as set forth in the MSI 
Agreements, no agreement for the support or maintenance of Microgyn Products 
obligates Microgyn, or would obligate the Surviving Corporation or Conceptus 
after the Effective Time to provide any improvement, enhancement, change in 
functionality or other alteration in the performance of the Microgyn Products.

          (c)  Except as set forth in the MSI Agreements, no person has a 
right to receive a royalty or other payment in respect of any Microgyn 
Product or Microgyn Intellectual Property Rights whether or not pursuant to 
any contractual arrangements entered into by Microgyn.  Except as set forth 
in the MSI Agreements, Microgyn has no licenses granted, sold or otherwise 
transferred by or to it nor other agreements to which it is a party, relating 
in whole or in part to any Microgyn Product or Microgyn Intellectual Property 
Rights.

          (d)  The execution, delivery and performance of this Agreement, the 
Articles of Merger and the Microgyn Ancillary Agreements, the consummation of 
the Merger and the consummation of the other transactions contemplated hereby 
and thereby (including without limitation the continued conduct by Conceptus 
after the Merger of Microgyn's Business as presently conducted and as 
proposed to be conducted in the Microgyn Business Plan and the incorporation 
of any Microgyn Product or Microgyn Intellectual Property Right in any 
product of Conceptus or the Surviving Corporation) will not breach, violate 
or conflict with any instrument or agreement governing any such Microgyn 
Product or Microgyn Intellectual Property Right necessary or required for, or 
used in, the conduct of the business of Microgyn as presently conducted or as 
proposed to be conducted and will not cause the forfeiture or termination or 
give rise to a right of forfeiture or termination of any such Microgyn 
Product or Microgyn Intellectual Property Right or in any way impair the 
right of Conceptus or the Surviving Corporation or any 


                                     -16-

<PAGE>

of its subsidiaries to use, sell, license or dispose of, either as 
part or all of an Microgyn Product or subsequent to the Closing (as defined 
in Article I) as part or all of a product of Conceptus or the Surviving 
Corporation, or to bring any action for the infringement of, any such 
Microgyn Product or Microgyn Intellectual Property Right or portion thereof.

          (e)  The development, manufacture, marketing, license, sale or use 
of any Microgyn Product or Microgyn Intellectual Property Right does not and 
will not violate any license or agreement to which Microgyn is a party or 
infringe any Intellectual Property Right of any other party; there is no 
pending or, to the knowledge of Microgyn, threatened claim or litigation 
contesting the validity, ownership or right to use, sell, license or dispose 
of any Intellectual Property Right necessary or required for, or used in, the 
conduct of the business of Microgyn as presently conducted nor, to the 
knowledge of Microgyn, is there any basis for any such claim, nor has 
Microgyn received any notice asserting that any such Intellectual Property 
Right or the proposed use, sale, license or disposition thereof conflicts or 
will conflict with the rights of any other party, nor, to the knowledge of 
Microgyn, is there any basis for any such assertion.  To Microgyn's 
knowledge, there is no infringement on the part of any third party of 
Microgyn's Intellectual Property Rights.

          (f)  Microgyn has taken reasonable and practicable steps 
(including, without limitation, entering into confidentiality and 
non-disclosure agreements with all officers and employees of and consultants 
to Microgyn with access to or knowledge of Microgyn's Intellectual Property 
Rights) to maintain the secrecy and confidentiality of, and its proprietary 
rights in, all Intellectual Property Rights necessary or required for, or 
used in, the conduct of Microgyn's Business.  All employees, consultants, 
officers, directors and shareholders of Microgyn that have had access to any 
material portion of the Microgyn Intellectual Property Rights are parties to 
a written agreement ("PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT"), 
under which each such person or entity (i) is obligated to disclose and 
transfer to Microgyn, without the receipt by such person of any additional 
value therefor (other than normal salary or fees for consulting services), 
all inventions, developments and discoveries which, during the period of 
employment with or performance of services for Microgyn, he makes or 
conceives of either solely or jointly with others, that relate to any subject 
matter with which his work for Microgyn may be concerned, or relate to or are 
connected with the business, products or projects of Microgyn, or involve the 
use of the time, material or facilities of Microgyn, and (ii) is obligated to 
maintain the confidentiality of proprietary information of Microgyn.  To 
Microgyn's knowledge, none of Microgyn's employees, consultants, officers or 
directors is obligated under any contract (including licenses, covenants or 
commitments of any nature) or other agreement, or subject to any judgment, 
decree or order of any court or administrative agency, that would conflict 
with their obligation to use their best efforts to promote the interests of 
Microgyn in the Microgyn Business or that would conflict with the Microgyn 
Business.  Other than technology licensed under the MSI Agreements, it is 
currently not necessary nor will it be necessary for Microgyn to utilize in 
the Microgyn Business nor will Microgyn utilize in the Microgyn Business any 
inventions of any of such persons or entities (or people it currently intends 
to hire) made or owned prior to their employment by or affiliation with 
Microgyn, nor is it or will it be necessary to utilize any other assets or 
rights of any such persons or entities (or people it currently intends to 
hire) made or owned prior to their employment with or engagement by Microgyn, 
in violation of any registered patents, trade names, trademarks or copyrights 
or any other limitations or

                                     -17-

<PAGE>

restrictions to which any such person or entity is a party or to which any of 
such assets or rights may be subject, except to the extent that such 
utilization would not have a material adverse effect on the Microgyn 
Business.  None of Microgyn's employees, consultants, officers, directors or 
shareholders that has had knowledge or access to information relating to 
Microgyn's Business has taken, removed or made use of any proprietary 
documentation, manuals, products, materials, or any other tangible item from 
his previous employer relating to the business as conducted of such previous 
employer which has resulted in Microgyn's access to or use of such 
proprietary items in Microgyn's Business, and Microgyn and each Microgyn 
Subsidiary will not gain access to or make use of any such proprietary items 
in Microgyn's Business, except to the extent that any such activities would 
not have a material adverse effect on Microgyn's Business.

          (g)  The MSI Agreements are the only licenses, sublicenses and 
other agreements as to which Microgyn is a party and pursuant to which 
Microgyn or any other person is authorized to use, license, sublicense, sell 
or distribute any Intellectual Property Right and includes the identity of 
all parties thereto, a description of the nature and subject matter thereof, 
the applicable royalty and the term thereof.  Microgyn is not in violation of 
any license, sublicense or agreement described on such list except such 
violations as do not materially impair Microgyn's rights under such license, 
sublicense or agreement. The MSI Agreements are the only exclusive 
arrangement between Microgyn and any third party to use, license, sublicense, 
sell or distribute any Microgyn Intellectual Property Right or any Microgyn 
Product.

          (h)  The Microgyn Disclosure Schedule contains a complete and 
accurate list of all applications, filings and other formal actions made or 
taken (including any results thereof) pursuant to federal, state, local and 
foreign laws by Microgyn to perfect or protect its interest in Microgyn 
Intellectual Property Rights, including, without limitation, all patents, 
patent applications, trademarks, trademark applications, service marks and 
copyright registrations.  As used herein, the term "INTELLECTUAL PROPERTY 
RIGHTS" means all intellectual property rights, including, without 
limitation, domestic and foreign patents, patent applications, patent rights, 
trademarks, trademark registrations, trademark applications, trade names, 
service marks, service mark applications, copyrights, copyright applications, 
licenses, know-how, trade secrets, trade rights, proprietary processes and 
formulae, inventions, development tools, designs, plans, specifications, 
technical information and other proprietary rights, whether or not 
registered, and all documentation and media relating to the above, and the 
term "MICROGYN INTELLECTUAL PROPERTY RIGHT" shall mean Intellectual Property 
Rights owned by or granted exclusively or nonexclusively to Microgyn.


                                     -18-

<PAGE>

     Section 2.14   ENVIRONMENTAL MATTERS.

          (a)  The operations of Microgyn (i) comply and have complied in all 
material respects with all federal, state and local environmental, health and 
safety laws, statutes and regulations, (ii) are not the subject of any 
judicial or administrative proceeding alleging the violation of any federal, 
state or local environment, health or safety law, statute or regulation, and 
(iii) are not the subject of any federal or state investigation pursuant to 
which Microgyn has been ordered to respond to a release of any hazardous or 
toxic waste, substance or constituent or other substance, into the 
environment in violation of law.

          (b)  Microgyn has not (i) filed any notice under federal or state 
law indicating past or present treatment, storage or disposal requiring a 
Part B permit or designation of "interim status" as defined under 40 C.F.R. 
Parts 260-270 or any state equivalent of a hazardous or toxic waste as 
defined therein or reporting a spill or release of a hazardous or toxic 
waste, substance or constituent or other substance, into the environment 
except in accordance with applicable law, or (ii) released, as defined in the 
Comprehensive Environmental Response Compensation and Liability Act (42 
U.S.C. Section 9601 ET SEQ.), any hazardous substance as defined therein into 
the environment.

          (c)  None of the operations of Microgyn involve, or have ever 
involved, the generation, transportation, treatment or disposal, as defined 
under 40 C.F.R. Parts 260-270 or any state equivalent, of any hazardous or 
toxic waste, substance or constituent.

          (d)  No claim, complaint, or administrative proceeding has been 
brought or is currently pending against Microgyn relating to any liability of 
Microgyn existing or threatened with respect to hazardous or toxic waste, 
substances or constituents or other substances or as to the investigation or 
remediation of hazardous or toxic waste, substances or constituents or other 
substances.

     As used herein "FEDERAL, STATE AND LOCAL ENVIRONMENTAL, HEALTH AND 
SAFETY LAWS, STATUTES OR REGULATIONS" means any and all laws, rules, 
regulations, orders, treaties, statutes and codes promulgated by any local, 
state, federal or international governmental authority or agency which has 
jurisdiction over any portion of the current operations of Microgyn, which 
prohibits, regulates or controls any hazardous material or the 
transportation, storage, transfer, recycling, use, treatment, manufacture, 
investigation, removal, remediation, release, exposure of others to, sale or 
distribution of hazardous materials including, without limitation, the 
Comprehensive Environmental Response, Compensation and Liability Act (42 
U.S.C. Section 9601 ET SEQ.), the Hazardous Material Transportation Act (49 
U.S.C. Section 1801 ET SEQ.), the Resource Conservation and Recovery Act (42 
U.S.C. Section 6901 ET SEQ.), the Federal Water Pollution Control Act (33 
U.S.C. Section 1251 ET SEQ.), the Clean Air Act (42 U.S.C. Section 7401 ET 
SEQ.), the Toxic Substances Control Act, as amended (15 4U.S.C. Section 2601 
ET SEQ.), and the Occupational Safety and Health Act (29 U.S.C. Section 651 
ET SEQ.), as these laws have been amended or supplemented to date and any 
analogous state or local statutes and the regulations promulgated to date 
pursuant thereto.


                                     -19-

<PAGE>

     As used herein, "HAZARDOUS OR TOXIC WASTE, SUBSTANCE OR CONSTITUENT OR 
OTHER SUBSTANCE" means those substances which are regulated by or form the 
basis of liability under any federal, state and local environmental, health 
and safety laws, statutes or regulations because they are radioactive, toxic, 
hazardous or otherwise a danger to health, reproduction or the environment, 
including, without limitation: (a) asbestos, (b) oil and petroleum products, 
(c) explosives, (d) radioactive substances, pollutants or wastes, (e) urea 
formaldehyde-containing building materials, (f) polychlorinated biphenyls, 
(g) radon gas, and (h) ultra-hazardous or toxic substances, pollutants or 
wastes.

     Section 2.15   CERTAIN AGREEMENTS.  Neither the execution and delivery 
of this Agreement, the Articles of Merger and the Microgyn Ancillary 
Agreements, nor the consummation of the transactions contemplated hereby or 
thereby will (a) result in any payment (including, without limitation, 
severance, unemployment compensation, golden parachute, bonus or otherwise) 
becoming due to any director or employee of Microgyn, under any Microgyn 
Employee Plan or otherwise, (b) increase any benefits otherwise payable under 
any Mycrogyn Employee Plan, or (c) result in the acceleration of the time of 
payment or vesting of any such benefits.

     Section 2.16   INTERESTS OF OFFICERS AND DIRECTORS.  No officer or 
director of Microgyn or any "affiliate" or "associate" (as those terms are 
defined in Rule 405 promulgated under the Securities Act) of any such person 
has had, either directly or indirectly, a material interest in:  (a) any 
person or entity which purchases from or sells, licenses or furnishes to 
Microgyn any goods, property, technology or intellectual or other property 
rights or services; (b) any contract or agreement to which Microgyn is a 
party or by which it may be bound or affected; or (c) any property, real or 
personal, tangible or intangible, used in or pertaining to Microgyn's 
Business, including any interest in the Microgyn Intellectual Property Rights.

     Section 2.17   RESTRICTIONS ON BUSINESS ACTIVITIES.  Other than the MSI 
Agreements there is no material agreement, judgment, injunction, order or 
decree binding upon Microgyn which has or could reasonably be expected to 
have the effect of prohibiting or materially impairing any business practice 
of Microgyn, any acquisition of property by Microgyn or the conduct of 
business by Microgyn as currently conducted or as currently proposed to be 
conducted by Microgyn.

     Section 2.18   TITLE TO PROPERTIES; ABSENCE OF LIENS AND ENCUMBRANCES; 
CONDITION OF EQUIPMENT.

          (a)  The Microgyn Disclosure Schedule lists all facilities occupied 
by Microgyn  since Microgyn's incorporation, and indicates the nature of 
Microgyn's interest in such facilities.  Microgyn has good and valid title 
to, or, in the case of leased properties and assets, valid leasehold 
interests in, all of its tangible properties and assets, real, personal and 
mixed, used in its business, free and clear of any liens, charges, pledges, 
security interests or other encumbrances, except those granted to Conceptus 
and those reflected in the Microgyn Disclosure Schedule or except for such 
imperfections of title and encumbrances, if any, which are not substantial in 
character, amount or extent, and which do not materially detract from the 
value, or interfere with the present use, of the property subject thereto or 
affected thereby.


                                     -20-

<PAGE>

          (b)  Microgyn does not own or lease any equipment.

     Section 2.19   REGULATORY MATTERS; GOVERNMENTAL LICENSES; COMPLIANCE 
WITH LAWS.  

          (a)  The Microgyn Disclosure Schedule sets forth a complete and 
accurate list and description of (i) all United States Food and Drug 
Administration (the "FDA") and any other Governmental Entity inspector lists 
of observations or similar documents made at inspections with respect to 
Microgyn, including without limitation Form(s) FDA-483, (ii) Regulatory or 
Warning Letters, Notices of Adverse Findings or Section 305 notices issued by 
the FDA or any similar letters or notices issued by any other Governmental 
Entity to Microgyn; (iii) all United States Pharmacopoeia Product Problem 
Reporting Program complaints or reports and MedWatch FDA forms 3500, device 
experience network complaints received by Microgyn and Medical Device Reports 
("MDRS") filed by Microgyn; (iv) all product recalls and safety alerts 
conducted by or issued to Microgyn; (v) any civil penalty actions begun by 
the FDA or any other Governmental Entity against Microgyn of which Microgyn 
is aware; and (vi) all 510(k) substantial equivalence letters or premarket 
approval letters ("PMAS") received by Microgyn, all applications filed by 
Microgyn for 510(k)s or PMAs   and all assurances from the FDA, written or 
oral, that any modifications to devices subject to issued 510(k)s or PMAs 
remain covered by FDA and any other Governmental Entity approvals.  

          (b)  Microgyn has obtained all consents, approvals, registrations,  
certifications, authorizations, permits and licenses of, and has made all 
filings with, or notifications to, all Governmental Entities pursuant to 
applicable requirements of all federal, state or local and, to Microgyn's 
knowledge, foreign, laws, ordinances, governmental rules or regulations 
applicable to Microgyn and its current business, including but not limited 
to, all such laws, ordinances, governmental rules or regulations relating to 
registration of Microgyn's Products (at their current level of development 
and use) and certification of its facilities. Microgyn is in compliance with 
all federal, state or local and, to Microgyn's knowledge, foreign, laws, 
ordinances, governmental rules or regulations relating to medical device 
manufacturers and distributors or otherwise applicable to its current 
business and has no reason to believe that any of its consents, approvals, 
authorizations, registrations, certifications, permits, filings or 
notifications that it has received or made to operate its business are 
invalid or have been or are being suspended, cancelled, revoked or 
questioned.  There is no investigation or inquiry to which Microgyn is a 
party or, to Microgyn's knowledge, pending or threatened relating to the 
operation of Microgyn's business and its compliance with applicable federal, 
state, local or foreign laws, ordinances, governmental rules or regulations.

          (c)  Microgyn is not in default with respect to any order of any 
court, governmental authority or arbitration board or tribunal to which 
Microgyn is a party or is subject.

     Section 2.20   LABOR MATTERS.

          (a)  Microgyn is in compliance in all material respects with all 
currently applicable laws and regulations respecting employment, 
discrimination in employment, terms and conditions of employment and wages 
and hours and occupational safety and health and employment practices, and 
are not engaged in any unfair labor practice.  Microgyn has complied


                                     -21-

<PAGE>

in all material aspects with all applicable provisions of the Consolidated 
Omnibus Budget Reconciliation Act of 1985 ("COBRA") and has no material 
obligations with respect to any former employees or qualifying beneficiaries 
thereunder.  Microgyn has not received any notice from any Governmental 
Entity, and there has not been asserted before any Governmental Entity, any 
claim, action or proceeding to which Microgyn is a party or involving 
Microgyn, and there is neither pending nor, to Microgyn's knowledge, 
threatened any investigation or hearing concerning Microgyn arising out of or 
based upon any such laws, regulations or practices.  Except as is not 
material to Microgyn's Business, Microgyn has not given to or received from, 
or anticipates giving to or receiving from, any employee of Microgyn  notice 
of termination of employment.  The Microgyn Disclosure Schedule sets forth 
the terms pursuant to which all amounts may be payable (whether currently or 
in the future) to current or former officers, directors, or employees of 
Microgyn  as a result of or in connection with the Merger.

          (b)  Microgyn is not a party to any labor agreement with respect to 
its employees with any labor organization, union, group or association and 
there are no employee unions (nor any other similar labor or employee 
organizations) under local statutes, custom or practice.  Microgyn has not 
experienced any attempt by organized labor or its representatives to make 
Microgyn conform to demands of organized labor relating to its employees or 
to enter into a binding agreement with organized labor that would cover the 
employees of Microgyn.  To Microgyn's knowledge, there is no labor strike or 
labor disturbance pending or threatened against Microgyn nor is any grievance 
currently being asserted.  Microgyn has not experienced a work stoppage or 
other labor difficulty.

     Section 2.21   QUESTIONABLE PAYMENTS.  Neither Microgyn nor to its 
knowledge any director, officer, agent or other employee of Microgyn has:  
(a) made any payments or provided services or other favors in the United 
States of America or in any foreign country in order to obtain preferential 
treatment or consideration by any Governmental Entity with respect to any 
aspect of the business of Microgyn; or (b) made any political contributions 
which would be lawful under the laws of the United States or the foreign 
country in which such payments were made. Neither Microgyn nor to its 
knowledge any director, officer, agent or other employee of Microgyn has been 
the subject of any inquiry or investigation by any Governmental Entity in 
connection with payments or benefits or other favors to or for the benefit of 
any governmental or armed services official, agent, representative or 
employee with respect to any aspect of the business of Microgyn or with 
respect to any political contribution.

     Section 2.22   INSURANCE.  The Microgyn Disclosure Schedule contains a 
complete and accurate list of all policies or binders of fire, liability, 
title, worker's compensation, product liability and other forms of insurance 
maintained by Microgyn. Microgyn is not in default under any of such policies 
or binders, and Microgyn has not failed to give any notice or to present any 
claim under any such policy or binder in a due and timely fashion.  There are 
no facts known to Microgyn upon which an insurer might be justified in 
reducing coverage or increasing premiums on existing policies or binders.  
There are no outstanding unpaid claims under any such policies or binders. 
All policies and binders provide sufficient coverage for the risks insured 
against, are in full force and effect on the date hereof and shall be kept in 
full force and effect through the Effective Time.


                                     -22-

<PAGE>

     Section 2.23   BROKERS.  Other than with respect to amounts owed to Mr. 
John Cvinar, as detailed on the Microgyn Disclosure Schedule, no broker, 
finder or investment banker is entitled to any brokerage, finder's or other 
fee or commission in connection with the transactions contemplated by this 
Agreement.  In the event that the preceding sentence is in any way 
inaccurate, Microgyn agrees to indemnify and hold harmless Conceptus from any 
liability for any commission or compensation in the nature of a finder's fee 
(and the costs and expenses of defending against such liability or asserted 
liability) for which Conceptus or any of its directors, officers, partners, 
employees or representatives is responsible.

     Section 2.24   DISCLOSURE.  To the knowledge of Microgyn, other than 
with respect to statements in the Microgyn Business Plan, no representation 
or warranty made by Microgyn in this Agreement, nor any document, written 
information, written statement, financial statement, certificate, schedule or 
exhibit prepared and furnished or to be prepared and furnished by Microgyn or 
its representatives pursuant hereto or in connection with the transactions 
contemplated hereby, contains any untrue statement of a material fact, or 
omits to state a material fact with respect to Microgyn (and specifically 
excluding any external factors such as general market conditions, products of 
competitors and other information in the public domain) necessary to make the 
statements or facts contained herein or therein not misleading in light of 
the circumstances under which they were furnished.  The Microgyn Business 
Plan and the financial projections contained therein were prepared in good 
faith; however, Microgyn does not warrant that it will achieve such financial 
projections.  To the knowledge of Microgyn, there is no event, fact or 
condition with respect to Microgyn (and specifically excluding any external 
factors such as general market conditions, products of competitors and other 
information in the public domain) that has resulted in, or could reasonably 
be expected to result in, a material adverse effect on Microgyn's Business 
that has not been set forth in this Agreement or in the Microgyn Disclosure 
Schedule.  Microgyn has provided copies to Conceptus of all documents and 
information requested by Conceptus pursuant to Conceptus's diligence requests.

     Section 2.25   VOTE REQUIRED.  The affirmative votes of the holders of 
two-thirds of the outstanding shares of Microgyn Common Stock is the only 
vote of the holders of any class or series of Microgyn Capital Stock 
necessary to approve this Agreement and the Merger.

     Section 2.26   MICROGYN AFFILIATES.   All persons that may be deemed to 
be an "affiliate" of Microgyn, as defined in Rule 405 promulgated under the 
Securities Act, are set forth in Section 2.26 of the Microgyn Disclosure 
Schedule; provided this section shall not constitute an admission that such 
persons are in fact affiliates.

                             ARTICLE III

                  REPRESENTATIONS AND WARRANTIES OF
                          CONCEPTUS AND SUB

     As of the date hereof, except as disclosed in a document referring 
specifically to the relevant subsections of this Article III which is 
delivered by Conceptus to Microgyn prior to execution of this Agreement (the 
"CONCEPTUS DISCLOSURE SCHEDULE"), Conceptus and Sub hereby represent and 
warrant to Microgyn and the Microgyn Shareholders, which representations, to 
the


                                     -23-

<PAGE>

extent to that they refer to the "knowledge" of Conceptus or Sub, shall be 
deemed to encompass the individual knowledge of each officer and director of 
Conceptus or Sub, as follows:

     Section 3.1    CORPORATE ORGANIZATION.  Conceptus and Sub are 
corporations duly organized, validly existing and in good standing under the 
laws of the State of Delaware and the Commonwealth of Massachusetts, 
respectively, and each has all requisite corporate power and authority and 
all necessary governmental authorizations to own, lease and operate its 
properties and to conduct its business as it is now being conducted.  
Conceptus and Sub are duly qualified or licensed to do business and are in 
good standing as foreign corporations in each state or other jurisdiction in 
which the nature of their respective businesses or operations or ownership of 
their property requires such qualification or licensing, except where the 
failure to be so qualified or licensed would not, individually or in the 
aggregate, materially and adversely affect the condition (financial or 
other), business, properties, prospects (as currently contemplated), net 
worth or results of operations of Conceptus and Sub taken as a whole 
(collectively, "CONCEPTUS'S BUSINESS").  Conceptus has delivered to Microgyn 
complete and correct copies of Conceptus's Certificate of Incorporation and 
Bylaws and Sub's Articles of Organization and Bylaws, in each case as amended 
to the date hereof.

     Section 3.2    CAPITAL STRUCTURE.  As of the date hereof the authorized 
capital stock of Conceptus consists of 30,000,000 shares of Conceptus Common 
Stock, and 3,000,000 shares of Preferred Stock, $0.003 par value ("CONCEPTUS 
PREFERRED STOCK"). At the close of business on September 30, 1996, 9,148,045 
shares of Conceptus Common Stock were outstanding and 1,060,668 shares of 
Conceptus Common Stock were reserved for issuance upon the exercise of 
outstanding stock options ("CONCEPTUS OPTIONS"), and no shares of Conceptus 
Preferred Stock were outstanding.  All outstanding shares of Conceptus Common 
Stock are validly issued, fully paid, nonassessable and free of preemptive 
rights.  The shares of Conceptus Common Stock issuable in connection with the 
Merger are duly authorized and reserved for issuance and, when issued in 
accordance with the terms of this Agreement and the Articles of Merger, will 
be validly issued, fully paid, nonassessable and free of preemptive rights.  
As of the date hereof, the authorized capital stock of Sub consists of 100 
shares of Common Stock, no par value, one of which is validly issued, fully 
paid and nonassessable and owned by Conceptus. Except for the shares listed 
above issuable pursuant to Conceptus Options, there are no options, warrants, 
calls, conversion rights, commitments or agreements of any character to which 
Conceptus or any Subsidiary of Conceptus is a party or by which any of them 
may be bound obligating Conceptus or any Subsidiary of Conceptus to issue, 
deliver or sell, or cause to be issued, delivered or sold, additional shares 
of the capital stock of Conceptus or of any Subsidiary of Conceptus or 
obligating Conceptus or any Subsidiary of Conceptus to grant, extend or enter 
into any such option, warrant, call, conversion right, commitment or 
agreement.

     Section 3.3    AUTHORIZATION, EXECUTION AND DELIVERY. Conceptus and Sub 
each has all requisite corporate power and authority (a) to execute and 
deliver this Agreement, the Articles of Merger and the agreements attached as 
exhibits hereto to which Conceptus or Sub is a party (the "CONCEPTUS 
ANCILLARY AGREEMENTS"), (b) to perform its respective obligations under this 
Agreement, the Articles of Merger and the Conceptus Ancillary Agreements, and 
(c) to consummate the transactions contemplated hereby and thereby.  The 
execution, delivery and performance of this Agreement, the Articles of Merger 
and the Conceptus Ancillary Agreements by Conceptus


                                     -24-

<PAGE>

and Sub and the consummation by Conceptus and Sub of the transactions 
contemplated hereby and thereby have been duly approved and authorized by all 
requisite corporate action of Conceptus and Sub.  This Agreement has been 
duly executed and delivered by Conceptus and Sub and, assuming its due 
authorization, execution and delivery by Microgyn, constitutes the legal, 
valid and binding obligation of each of them, enforceable in accordance with 
its terms.  The Board of Directors of Conceptus has determined that it is 
advisable and in the best interest of Conceptus's stockholders for Conceptus 
to enter into a strategic business combination with Microgyn upon the terms 
and subject to the conditions of this Agreement.

     Section 3.4    GOVERNMENTAL APPROVALS AND FILINGS.  No approval, 
authorization, consent, license, clearance or order of, declaration or 
notification to, or filing, registration or compliance with, any Governmental 
Entity is required on the part of Conceptus or Sub in order (a) to permit 
Conceptus and Sub to perform their respective obligations under this 
Agreement or (b) to prevent the termination of any right, privilege, license 
or agreement of Conceptus, or to prevent any loss to Conceptus's Business, by 
reason of the transactions contemplated by this Agreement, except for (i) the 
receipt of a permit from the California Department of Corporations (ii) the 
filing of the Articles of Merger, as required by the MBCL, (iii) the 
registration requirements of state securities or "Blue Sky" laws and (iv) the 
rules of the Nasdaq National Market applicable to the Conceptus Common Stock.

     Section 3.5    NO CONFLICT.  Except for compliance with the governmental 
and regulatory requirements described in Section 3.4 hereof, neither the 
execution, delivery and performance of this Agreement, the Articles of Merger 
and the Conceptus Ancillary Agreements by Conceptus and Sub nor the 
consummation by Conceptus and Sub of the transactions contemplated hereby and 
thereby, including the Subsequent Merger, will (a) conflict with, or result 
in a breach of, any of the terms, conditions or provisions of Conceptus's 
Certificate of Incorporation, Sub's Articles of Organization, Conceptus's 
Bylaws or Sub's Bylaws, (b) conflict with, result in a breach or violation 
of, give rise to a termination right or a default under, or result in the 
acceleration of performance under (whether or not after the giving of notice 
or lapse of time or both), any mortgage, lien, lease, agreement, note, bond, 
indenture, guarantee or instrument or any license or franchise granted by or 
to third party that is material to Conceptus's Business, (c) conflict with, 
or result in a violation of, any statute, regulation, law, ordinance, writ, 
injunction, order, judgment or decree to which Conceptus or Sub or any of 
their respective assets may be subject, which conflict, breach, default or 
violation would materially and adversely affect Conceptus's Business, (d) 
give rise to a declaration or imposition of any lien, charge, security 
interest or encumbrance of any nature whatsoever upon any of the assets of 
Conceptus or Sub, (e) materially and adversely affect any franchise, license, 
permit or other governmental approval which is material to Conceptus's 
Business or is necessary to enable Conceptus or Sub to carry on their 
respective businesses as presently conducted or is required of any employee 
or agent thereof to enable each of them to carry out such person's duties on 
behalf of Conceptus or Sub, as the case may be, or (f) require the consent of 
any third party.

     Section 3.6    REPORTS; ACCURACY OF INFORMATION.  Conceptus has 
previously delivered to Microgyn true and complete copies of (a) Conceptus's 
annual report on Form 10-K for the year ended December 31, 1995, and 
quarterly reports on Form 10-Q for the quarters ended March 31, 1996 and June 
30, 1996, as filed by Conceptus with the Securities and Exchange Commission 


                                     -25-

<PAGE>

pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as 
amended (the "EXCHANGE ACT"), and (b) the Company's notice of annual meeting, 
proxy statement and annual report furnished to Conceptus's stockholders in 
connection with its 1996 annual meeting of stockholders held on May 9, 1996.  
As of their respective dates (or, if any such report or proxy statement shall 
have been amended, as of the date of such amendment), such reports and proxy 
statements (i) complied with all applicable provisions, rules and regulations 
of federal securities laws and (ii) did not contain any untrue statement of a 
material fact or omit to state a material fact required to be stated therein 
or necessary to make the statements contained therein, in light of the 
circumstances in which such statements were made, not misleading. Conceptus 
has timely filed all reports and registration statements required to be filed 
by Conceptus with the Commission under the rules and regulations of the 
Commission.

     Section 3.7    LITIGATION.  There is no action, suit, proceeding, 
investigation or claim pending or, to the knowledge of Conceptus, threatened 
against Conceptus or any its Subsidiaries which could, individually or in the 
aggregate, have a material adverse effect on Conceptus's Business or which in 
any manner challenges or seeks to prevent, enjoin, alter or materially delay 
any of the transactions contemplated hereby.

     Section 3.8    NO MATERIAL ADVERSE CHANGE.  Since the date of the 
balance sheet included in Conceptus's most recently filed report on Form 
10-Q, Conceptus has conducted its business in the ordinary course and there 
has not occurred: (a) any material adverse change in the financial condition, 
liabilities, assets or business of Conceptus; (b) any amendment or change in 
the Certificate of Incorporation or Bylaws of Conceptus; (c) any damage to, 
destruction of or loss of any assets of the Conceptus (whether or not covered 
by insurance) that materially and adversely affects the financial condition 
or business of Conceptus; or (d) any sale of a material amount of property of 
Conceptus, except in the ordinary course of business.

     Section 3.9    BROKERS.  No broker, finder or investment banker is 
entitled to any brokerage, finder's or other fee or commission in connection 
with the transactions contemplated by this Agreement.  In the event that the 
preceding sentence is in any way inaccurate, Conceptus agrees to indemnify 
and hold harmless Microgyn from any liability for any commission or 
compensation in the nature of a finder's fee (and the costs and expenses of 
defending against such liability or asserted liability) for which Conceptus 
or any of its directors, officers, partners, employees or representatives is 
responsible.

     Section 3.10   RESALE OF MERGER SHARES.   Assuming the issuance of a 
Permit by the Commissioner following the Permit Application and Hearing, as 
all of such terms are defined in Section 6.2 below, the Merger Shares may be 
resold in compliance with Rule 145 promulgated under the Securities Act or 
otherwise pursuant to a valid exemption from registration under the 
Securities Act.


                                     -26-

<PAGE>

                             ARTICLE IV

                        COVENANTS OF MICROGYN

     Section 4.1    REGULAR COURSE OF BUSINESS.  Except as otherwise 
consented to in writing by Conceptus, prior to the Effective Time Microgyn 
shall use its best efforts to conduct its business in the ordinary and usual 
course consistent with past practice and shall use reasonable efforts to 
maintain and preserve intact its business organizations, keep available the 
services of its officers and employees and maintain positive relations with 
licensors, licensees, suppliers, contractors, distributors, customers and 
others having business relationships with them.  Microgyn shall promptly 
notify Conceptus of any event or occurrence not in the ordinary course of 
business and will not enter into or amend any agreement or take any action 
which reasonably could be expected to have a material adverse effect on 
Microgyn's Business.

     Section 4.2    RESTRICTED ACTIVITIES AND TRANSACTIONS. Except as 
provided herein or as otherwise consented to in writing by Conceptus, prior 
to the Effective Time, Microgyn will not:

          (a)  propose, adopt or permit an amendment of Microgyn's Articles 
of Organization or Microgyn's Bylaws;

          (b)  issue, sell, encumber or deliver, or agree to issue, sell, 
encumber or deliver, any shares of any class of capital stock of Microgyn or 
any securities convertible into any such shares or convertible into 
securities in turn so convertible, or any options, warrants, or other rights 
calling for the issuance, sale or delivery of any such shares or convertible 
securities (except pursuant to the conversion of securities convertible into 
Microgyn Capital Stock and outstanding as of the date hereof) or authorize or 
propose any change in its equity capitalization;

          (c)  split, combine or reclassify any of its capital stock or issue 
or authorize or propose the issuance or authorization of any other securities 
in respect of, in lieu of or in substitution for shares of its capital stock 
or repurchase, redeem or otherwise acquire any shares of its capital stock,

          (d)  mortgage or pledge any of its assets, tangible or intangible;

          (e)  (i) borrow, or agree to borrow, any funds or voluntarily 
incur, assume or become subject to, whether directly or by way of guarantee 
or otherwise, any obligation or liability (absolute or contingent), (ii) 
cancel or agree to cancel any debts or claims, (iii) lease, sell or transfer, 
agree to lease, sell or transfer, or grant or agree to grant any preferential 
rights to lease or acquire, any of its assets, property or rights (except for 
(A) dispositions of obsolete or worthless assets, (B) sales of immaterial 
assets not in excess of $5,000 in the aggregate and (C) leases of equipment 
in the ordinary course of business pursuant to commitments as set forth in 
the Microgyn Disclosure Schedule), or (iv) make or permit any material 
amendments or termination of any material contract, agreement, license or 
other right to which it is a party;

          (f)  grant any increase in compensation to any employee or director 
(except for annual increases in salary or wages of, and bonus grants made to, 
employees in the ordinary course of business consistent with past practice, 
which increases or grants have been consented to


                                     -27-

<PAGE>

in writing by Conceptus and have been listed in the Microgyn Disclosure 
Schedule), or amend in any respect the terms of any Microgyn Employee Plan or 
adopt any new Microgyn Employee Plan or similar arrangements or agreements 
(except in each case as specifically provided in this Agreement or as 
required by law), or enter into or amend any employment, severance or similar 
arrangement;

          (g)  hire any management personnel or terminate any employee of 
Microgyn , except in the ordinary course of business involving a person with 
an annual salary of less than $25,000 and only (in the case of a new hire) 
pursuant to an at-will arrangement without any severance benefits;

          (h)  acquire control or ownership of any other corporation, 
association, joint venture, partnership, business trust or other business 
entity, or acquire control or ownership of all or a substantial portion of 
the assets of any of the foregoing, or incorporate or form, or cause to be 
incorporated or formed, any corporation, association, joint venture, 
partnership, business trust or other business entity, or merge, consolidate 
or otherwise combine with any other corporation (except as provided for in 
this Agreement), or otherwise acquire or agree to acquire any assets which 
are material, individually or in the aggregate, to the Microgyn Business;

          (j)  pay, discharge or satisfy any claims, liabilities or 
obligations (whether absolute, accrued, contingent or otherwise), other than 
in the ordinary course of business consistent with past practice of 
liabilities reflected or reserved against in the Microgyn Financial 
Statements;

          (k)  except in the ordinary course of business, enter into or agree 
to enter into any transaction material to Microgyn's Business;

          (l)  transfer or license to any person or entity, or otherwise 
extend, amend or modify, any rights to the Microgyn Intellectual Property 
Rights;

          (m)  enter into or amend any agreements pursuant to which any other 
party is granted most favored customer status or exclusive marketing, 
distribution or other similar rights with respect to any products of Microgyn;

          (n)  violate, amend or otherwise modify the material terms of any 
of the contracts set forth on the Microgyn Disclosure Schedule;

          (o)  commence a lawsuit other than for the routine collection of 
bills or to enforce Microgyn's rights under this Agreement, or settle a 
lawsuit;

          (p)  change the accounting methods or practices followed by 
Microgyn , including any change in any assumption underlying, or method of 
calculating, any bad debt, contingency or other reserve, except as may be 
required by changes in generally accepted accounting principles, make or 
change any material Tax election, adopt or change any Tax accounting method, 
file any material Return or any amendment to a material Return (other than as 
required and in accordance with Section 4.5), enter into any material closing 
agreement, settle any material Tax claim or assessment, or consent to any 
extension or waiver of the limitation period


                                     -28-

<PAGE>

applicable to any material Tax claim or assessment, without the prior consent 
of Conceptus, which consent will not be unreasonably withheld (for purposes 
of this covenant a "material" Tax Return, closing agreement, Tax claim or 
assessment shall mean a Tax liability with respect to each such item in 
excess of $5,000);

          (q)  take any action that would result in any of the 
representations and warranties of Microgyn set forth in this Agreement 
becoming untrue;

          (r)  make any changes in its investment portfolio other than the 
reinvestment of the proceeds of maturing, redeemed or prepaid securities, 
obligations or other investments into United States Treasury securities 
maturing 90 days or less from the date of investment;

          (s)  allow or permit to be done any act by which any of its 
insurance policies may be suspended, impaired or canceled; 

          (t)  fail to comply in any material respect with all laws 
applicable to it; or

          (u)  authorize or propose any of the foregoing, or enter into any 
contract, agreement, commitment or arrangement to do any of the foregoing.

     Section 4.3    DIVIDENDS AND DISTRIBUTIONS; REPURCHASES. Except as 
otherwise consented to in writing by Conceptus prior to the Effective Time, 
Microgyn will not declare or pay any dividend on its capital stock in cash, 
stock or property, and will not redeem, repurchase or otherwise acquire any 
shares, or rights to acquire shares, of its capital stock.

     Section 4.4    NO DEFAULT OR VIOLATION.  Except as otherwise consented 
to in writing by Conceptus, prior to the Effective Time, Microgyn will use 
its best efforts not to (a) violate, or commit a breach of or a default 
under, any contract, agreement, lease, license, mortgage or commitment to 
which it is a party or to which any of its assets may be subject or (b) 
violate any statute, regulation, ordinance, writ, injunction, order, judgment 
or decree, or any other requirement of any governmental body or court, 
applicable to its assets or business, the effect of which in any such case in 
clauses (a) or (b) would be materially adverse to Microgyn's Business.

     Section 4.5    TAXES; CONSENT.  Microgyn shall prepare and timely file 
all Returns and amendments thereto required to be filed by it on or before 
the Closing Date.  Conceptus shall have a reasonable opportunity to review 
all Returns and amendments thereto and to approve such Returns (which 
approval shall not be unreasonably withheld).  Microgyn shall pay and 
discharge all Taxes, assessments and governmental charges upon or against it 
or any of its properties or assets, and all liabilities at any time existing, 
before the same shall become delinquent and before penalties accrue thereon, 
except to the extent and as long as: (a) the same are being contested in good 
faith and by appropriate proceedings pursued diligently and in such a manner 
as not to cause any material adverse effect upon the condition (financial or 
otherwise) or operations of Microgyn; and (b) Microgyn shall have set aside 
on its books adequate reserves for such Taxes. Between the date of this 
Agreement and the Closing Date, Microgyn shall give Conceptus and its 
authorized representatives full access to all properties, books, records and 
Returns of or relating to Microgyn, whether in possession of Microgyn, or 
third-party professional advisors or


                                     -29-

<PAGE>

representatives in order that Conceptus may have full opportunity to make 
such investigations as it shall desire to make of the affairs of Microgyn.  
Microgyn shall ensure that all third-party advisors and representatives of 
Microgyn, including without limitation accountants and attorneys, fully 
cooperate and be available to Conceptus in connection with such 
investigation.  Microgyn shall, as of the Closing Date, terminate all tax 
allocation agreements or tax sharing agreements with respect to Microgyn and 
shall ensure that any such agreements are of no further force or effect as to 
Microgyn  on and after the Closing Date.

     Section 4.6    ADVICE OF CHANGES.  Microgyn will promptly advise 
Conceptus in writing of (a) any event occurring subsequent to the date of 
this Agreement which would render any representation or warranty of Microgyn 
contained in this Agreement, if made on or as of the date of such event or 
the date of the Closing, untrue or inaccurate or (b) any material adverse 
change in Microgyn's Business.

     Section 4.7    NEGOTIATION WITH OTHERS.  From and after the date of this 
Agreement until the earlier of the Effective Time or the termination of this 
Agreement in accordance with its terms, Microgyn shall not, directly or 
indirectly, (a) solicit, initiate discussions or engage in negotiations with 
any person (whether such negotiations are initiated by Microgyn or otherwise) 
or take any other action intended or designed to facilitate the efforts of 
any person, other than Conceptus, relating to the possible acquisition of 
Microgyn (whether by way of merger, purchase of capital stock, purchase of 
assets or otherwise) or any material portion of its or their capital stock or 
assets (with any such efforts by any such person, including without 
limitation a firm proposal to make such an acquisition, to be referred to as 
an "ACQUISITION PROPOSAL"), (b) provide information with respect to Microgyn 
to any person, other than Conceptus, relating to a possible Acquisition 
Proposal by any person, other than Conceptus, (c) enter into an agreement 
with any person, other than Conceptus, providing for a possible Acquisition 
Proposal, or (d) make or authorize any statement, recommendation or 
solicitation in support of any possible Acquisition Proposal by any person 
other than by Conceptus.  In addition, Microgyn agrees to immediately cease 
any and all existing activities, discussions or negotiations with any parties 
conducted prior to the date hereof with respect to the foregoing.

     Section 4.8    ACQUISITION PROPOSALS.  Microgyn will provide Conceptus 
with immediate notice of any inquiry or offer Microgyn receives from or on 
behalf of any third party of the type referred to in Section 4.7 hereof, 
including in such notice the identity of the third party and a complete 
description of any such inquiry or offer, and will provide Conceptus with 
immediate notice if Microgyn provides or furnishes any information to any 
third party relating to a possible Acquisition Proposal.

     Section 4.9    CONSENTS, APPROVALS AND FILINGS.  Subject to having 
sufficient funds, Microgyn will use its best efforts to comply as promptly as 
practicable with the governmental requirements specified in Section 2.5 
hereof and to obtain on or before the Closing all necessary approvals, 
authorizations, consents, licenses, clearances or orders of Governmental 
Entities referred to in such section or of other persons referred to in 
Section 2.6 or the Microgyn Disclosure Schedule.


                                     -30-

<PAGE>

     Section 4.10   ACCESS TO RECORDS AND PROPERTIES.  Conceptus may, prior 
to the Effective Time, through its employees, agents and representatives, 
continue to conduct or cause to be conducted a detailed review of the 
business, financial condition, properties, assets, books and records of 
Microgyn.  Microgyn agrees to assist Conceptus in conducting such review and 
investigation and will provide, and will cause its independent public 
accountants (if any) to provide (subject to Conceptus's agreement to any 
hold-harmless or indemnity reasonably required by such independent public 
accountants), Conceptus and its employees, agents and representatives full 
access to, and complete information concerning all aspects of the business of 
Microgyn, including its books, records (including Returns filed or in 
preparation), personnel and premises, the audit work papers and other records 
relating to Microgyn of its independent public accountants.  Neither any 
investigation by Conceptus nor the receipt by Conceptus of any data or 
information from Microgyn, its independent public accountants and other 
representatives or advisors will affect the right of Conceptus or Sub to rely 
on the representations, warranties or covenants of Microgyn or the right of 
Conceptus to terminate this Agreement as provided in Section 13.1 hereof.

     Section 4.11   NON-COMPETITION AGREEMENTS.  Prior to the Closing, 
Microgyn will use its reasonable best efforts to cause those shareholders set 
forth in Section 4.11 of the Microgyn Disclosure Schedule to execute and 
deliver to Conceptus Non-Competition Agreements substantially in the form of 
EXHIBIT B-1, B-2 and B-3 attached hereto (the "NON-COMPETITION AGREEMENTS").

                              ARTICLE V
                                  
                   COVENANTS OF CONCEPTUS AND SUB

     Section 5.1    LISTING APPLICATION.  Conceptus will prepare and submit 
to the Nasdaq National Market an additional listing application covering the 
Merger Securities issuable in connection with the Merger and will use its 
best efforts to obtain approval for the listing of such securities upon 
official notice of issuance.

     Section 5.2    EMPLOYEE BENEFITS.  Promptly following the Effective 
Time, Conceptus will take all steps necessary to make available to those 
employees of Microgyn that will become employees of Conceptus or the 
Surviving Corporation all employee benefits then offered to Conceptus 
employees of like circumstance.

     Section 5.3    CONDUCT OF MICROGYN BUSINESS. 

           (a)    It is Conceptus's intent to invest in research and 
development ("R&D") to successfully commercialize the Microgyn sheath (CISS) 
product in order to achieve the level of sales projected in the Microgyn 
Business Plan.  Accordingly, Conceptus will fund Microgyn's R&D expenses 
(including regulatory expenses) at no less than the levels set forth in the 
Microgyn Business Plan through the period ending twelve (12) full calendar 
months after the initial domestic commercial sale of a Microgyn Product (as 
such terms and periods are discussed in Section 1.3(c) above). It is also 
agreed that Conceptus needs a mechanism to adjust R&D expenditures should 
sales fall far short of the projected level of sales in the Microgyn Business 
Plan.  To this end, at


                                     -31-

<PAGE>

the end of the first twelve (12) full calendar months of commercial sales of 
Microgyn Products in the United States (the "FIRST REVIEW") and on the 
anniversary date thereafter (each a "SUBSEQUENT REVIEW") through the period 
ending December 31, 2001, Conceptus will review actual sales performance for 
Microgyn Products versus projected levels set forth in the Microgyn Business 
Plan.  If at the First Review actual sales of Microgyn Products for the 
preceding twelve (12) calendar months exceed $3.5 million worldwide, 
Conceptus will provide R&D funding for the Microgyn projects over the next 
twelve (12) calendar months at a level no less than the sum of the amounts 
set forth in the Microgyn Business Plan for such period.  Thereafter at each 
Subsequent Review, if actual worldwide sales of Microgyn Products exceed an 
amount equal to double the minimum worldwide sales for the prior twelve-month 
period (as set forth in the final sentence of this paragraph), Conceptus will 
continue to provide R&D funding over the next twelve (12) full months at a 
level no less than the sum of the amounts set forth in the Microgyn Business 
Plan for such period.  If at the First Review or at any Subsequent Review 
actual worldwide sales of Microgyn Products for the prior twelve (12) 
calendar months fail to meet the following minimum levels, Conceptus will not 
be obligated thereafter to provide the level of R&D funding set forth in the 
Microgyn Business Plan:  First Review - $3.5 million; Second Review - $7.0 
million; Third Review - $14.0 million; Fourth Review - $28.0 million.  
Nothing in this paragraph shall be construed to apply to, or create 
obligations on the part of Conceptus regarding, the funding of the Microgyn 
projects by Conceptus after December 31, 2001.

          (b)   It is Conceptus's intent to build a single, physician-focused 
United States sales force to sell a broad range of Conceptus products 
including its existing and future products, the Microgyn Products and any 
other products the marketing rights to which may be acquired by Conceptus.  
Conceptus currently employs five United States sales representatives.  So 
long as the sales of the Microgyn Products are consistent with the projected 
sales figures set forth in the Microgyn Business Plan, Conceptus will use its 
best efforts to market and sell Microgyn Products in the manner described in 
the Microgyn Business Plan or in another manner not less favorable to the 
Microgyn Shareholders' interest under Section 1.3(c) and (d) above.

           (c)   During the calendar years 1997-2001, Conceptus will at all 
times maintain the Surviving Corporation as a separate subsidiary or a 
separate business unit for which gross profit and research and development 
expenses (including expenses for regulatory and clinical affairs) are 
calculated.

     Section 5.4    MICROGYN OBLIGATIONS UNDER MSI AGREEMENTS.  Following the 
Effective Time, the Surviving Corporation shall comply, and Conceptus shall 
cause such corporation to comply, fully with Microgyn's obligations under the 
various agreements between Microgyn and MSI, including, without limitation, 
obligations to pay all amounts payable by Microgyn under such contracts.

     Section 5.5    SECURITIES LAW COMPLIANCE.   Conceptus will use its best 
efforts to (a) comply with all applicable state securities ("blue sky") laws 
with respect to the issuance of the Merger Shares, and (b) apply for and 
obtain a Permit from the Commissioner with respect to the issuance of the 
Merger Shares, as described in Article VI below.


                                     -32-

<PAGE>

     Section 5.6    REPORTS UNDER SECURITIES EXCHANGE ACT OF 1934.   
Conceptus will use its best efforts to file with the Securities and Exchange 
Commission in a timely manner all reports and other documents required of 
Conceptus under the Securities Act and the Exchange Act to the extent 
necessary to allow the Microgyn Shareholders to dispose of their Merger 
Shares pursuant to Rule 145 under the Securities Act.

                             ARTICLE VI

                      SECURITIES ACT COMPLIANCE

     Section 6.1   SECURITIES ACT EXEMPTION.   The Conceptus Common Stock to 
be issued pursuant to this Agreement and the Articles of Mergers shall not be 
registered under the Securities Act in reliance upon the exemption contained 
in Section 3(a)(10) of said Securities Act.  

     Section 6.2   FAIRNESS HEARING AND PERMIT.   Conceptus has filed or will 
file with the California Commissioner of Corporations (the "COMMISSIONER") a 
permit application in the form prescribed by the Commissioner (the "PERMIT 
APPLICATION") and a hearing request (the "HEARING REQUEST") for a hearing to 
be held by the Commissioner to consider the terms, conditions and fairness of 
the transactions contemplated by this Agreement and the Articles of Merger 
pursuant to Section 25142 of the California Corporate Securities Laws of 
1968, as amended (the "HEARING").  As soon as permitted by the Commissioner, 
Conceptus shall cause the mailing of a hearing notice pursuant to, and 
meeting the requirements of, Article 2 of Subchapter 1 of the California 
Administrative Code, Title 10, Chapter 3, as amended, (the "HEARING NOTICE") 
concerning the Hearing to all holders of Microgyn Capital Stock entitled to 
receive such notice pursuant to the requirements of the rules of the 
Commissioner and the California Corporate Securities Laws of 1968, as 
amended.  Microgyn shall furnish to Conceptus such data and information 
concerning Microgyn as is necessary for Conceptus's preparation and filing of 
the Permit Application, the Hearing Request and the Hearing Notice.  All 
documents relating to the Hearing and filed with the Commissioner shall 
contain all of the material required to be contained therein by the 
California Corporate Securities Laws of 1968, as amended, and the rules and 
regulations thereunder.

     Section 6.3   STOCK RESTRICTIONS.   In addition to any legend imposed by 
applicable state securities laws, the certificates representing the Merger 
Shares issued to persons or entities that may be deemed an affiliate of 
Microgyn or Conceptus upon the execution of this Agreement or at any time 
thereafter shall bear a restrictive legend stating substantially as follows:

     THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 
     1933, AS AMENDED.  THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR 
     HYPOTHECATED IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH 
     RESPECT TO THE SECURITIES UNDER SUCH ACT OR AN OPINION OF COUNSEL 
     SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED OR
     UNLESS SOLD PURSUANT TO RULE 145 OF SUCH ACT.


                                     -33-

<PAGE>

     Section 6.4   SHAREHOLDERS' REPRESENTATIONS REGARDING SECURITIES LAW 
MATTERS.   Each Microgyn Shareholder, by virtue of the Merger and such 
conversion, shall be bound by the following provisions:

          (a)   The Microgyn Shareholder will not offer, sell or otherwise 
dispose of any shares of Conceptus Common Stock except in compliance with the 
Securities Act and the rules and regulations thereunder; and

          (b)   The Microgyn Shareholder will not make any sale, transfer or 
other disposition of the Conceptus Common Stock unless (i) such sale, 
transfer or other disposition is within the limitations of and in compliance 
with Rule 145 promulgated by the Securities and Exchange Commission under the 
Securities Act, and the Microgyn Shareholder furnishes Conceptus with 
reasonable proof of compliance with such Rule, or (ii) in the opinion of 
counsel reasonably acceptable to Conceptus and its counsel, some other 
exemption from registration under the Securities Act is available with 
respect to any such proposed sale, transfer or other disposition of the 
Conceptus Common Stock, or (iii) the offer and sale of the Conceptus Common 
Stock is registered under the Securities Act. 

                             ARTICLE VII

                          MUTUAL COVENANTS

     Section 7.1    CONFIDENTIALITY.

          (a)  In connection with the negotiation of this Agreement, the 
preparation for the consummation of the transaction contemplated hereby, and 
the performance of obligations hereunder, each party hereto acknowledges that 
it has had, and will have, access to confidential information relating to the 
other party, including, but not limited to, technical, manufacturing or 
marketing information, ideas, methods, developments, inventions, 
improvements, business plans, trade secrets, scientific or statistical data, 
diagrams, drawings, specifications or other proprietary information relating 
thereto, together with all analyses, compilations, studies or other 
documents, records or data prepared by the parties or their respective 
representatives which contain or otherwise reflect or are generated from such 
information.  All such information is herein referred to as "CONFIDENTIAL 
INFORMATION"; provided, however, that the term "Confidential Information" 
does not include information received by a party in connection with the 
transaction contemplated hereby which (i) is or becomes generally available 
to the public other than as a result of a disclosure by such party or its 
representatives, (ii) was within such party's possession (as evidenced by 
duly authenticated writings) prior to its being furnished to such party by or 
on behalf of the other party in connection with the transaction contemplated 
hereby, provided that the source of such information was not known by such 
party to be bound by a confidentiality agreement with or other contractual, 
legal or fiduciary obligation of confidentiality to the other party or any 
other person with respect to such information or (iii) becomes available to 
such party on a non-confidential basis from a source other than the other 
party or any of its representatives, provided that such source is not bound 
by a confidentiality agreement with or other contractual, 

                                     -34-

<PAGE>

legal or fiduciary obligation of confidentiality to the other party or any 
other person with respect to such information.

          (b)  Nothing in this Section 7.1 is intended to grant any rights 
under any patent or copyright of either party, nor shall this Section 7.1 
grant any right in or to the other party's Confidential Information.  Each 
party shall use the other party's Confidential Information solely for the 
purpose of consummating the transaction contemplated by this Agreement and 
shall use reasonable efforts to treat all Confidential Information as 
confidential, preserve the confidentiality thereof and not disclose any 
Confidential Information, except to its representatives and affiliates who 
need to know such Confidential Information in connection with the transaction 
contemplated hereby.  Each party shall cause its representatives to comply 
with the covenants in the preceding sentence.

          (c)  All Confidential Information shall remain the property of the 
party who originally possessed such information. In the event of the 
termination of this Agreement for any reason whatsoever, Conceptus shall, and 
shall cause its representatives to, promptly return to Microgyn, and Microgyn 
shall, and shall cause its representatives to, promptly return to Conceptus, 
all Confidential Information (including all copies, summaries and extracts 
thereof and all analyses, compilations, studies or other documents, records 
or data which contain, reflect or are generated from such Confidential 
Information) furnished to Conceptus or Microgyn, as the case may be, by the 
other party in connection with the transactions contemplated hereby.

          (d)  If a party or any of its representatives or affiliates is 
requested or required (by oral questions, interrogatories, requests for 
information or documents in legal proceedings, subpoena, civil investigative 
demand or other similar process) or is otherwise required by operation of law 
to disclose any Confidential Information, such party shall provide the other 
party with prompt written notice of such request or requirement, which notice 
shall, if practicable, be at least 48 hours prior to making such disclosure, 
so that the other party may seek a protective order or other appropriate 
remedy and/or waive compliance with the provisions of this Agreement.  If, in 
the absence of a protective order or other remedy or the receipt of such a 
waiver, such party or any of its representatives are nonetheless, in the 
opinion of counsel, legally compelled to disclose Confidential Information, 
then such party may disclose that portion or the Confidential Information 
which such counsel advises is legally required to be disclosed, provided that 
such party uses its reasonable efforts to preserve the confidentiality of the 
Confidential Information, whereupon such disclosure shall not constitute a 
breach of this Agreement.

          (e)  Each party agrees that its obligations provided herein are 
necessary and reasonable in order to protect the other party and its 
business, and each party expressly agrees that monetary damages would be 
inadequate to compensate a party for any breach by the other party of its 
covenants and agreements set forth herein.  Accordingly, each party agrees 
and acknowledges that any such breach or threatened breach will cause 
irreparable injury to the other party and that, in addition to any other 
remedies that may be available, in law, in equity or otherwise, such party 
shall be entitled to obtain injunctive relief against the threatened breach 
of this Agreement or the continuation of any such breach, without the 
necessity of proving actual damages.


                                     -35-

<PAGE>

     Section 7.2    EXPENSES.

          (a)  Except as otherwise provided in this Section 7.2, in the event 
the Merger is not consummated, Conceptus and Microgyn will each separately 
bear its own expenses incurred in connection with this Agreement or any 
transaction contemplated hereby, except that in the event that the Closing 
occurs, Conceptus agrees to pay the expenses, not to exceed an aggregate of 
$250,000, of Microgyn's legal, accounting and financial advisors.  The 
parties acknowledge that any excess fees over and above such $250,000 amount 
will be borne directly by the Microgyn Shareholders via a corresponding 
decrease in the aggregate amount of Cash Payments to be made by Conceptus.

          (b)  In the event that the transaction is not consummated because 
(a) the Microgyn Board of Directors or Shareholders do not approve the 
transaction or elect not to continue to pursue the transaction (including 
entertaining competitive offers), then Microgyn shall pay to Conceptus within 
five business days of such event an amount equal to Conceptus's documented 
out-of-pocket expenses incurred in pursuit of this transaction; PROVIDED that 
such decision not to approve or not to pursue is not based on fraud or 
willful misconduct on the part of Conceptus or its agents and PROVIDED, 
FURTHER, that such election is not based upon the circumstances set forth in 
Sections 13.1(a), (c) or (e) below, or (b) the Conceptus Board of Directors 
does not approve the transaction or Conceptus elects not to continue to 
pursue the transaction, then the principal and all accrued interest on the 
outstanding secured loan from Conceptus to Microgyn shall be deemed forgiven 
and Conceptus shall pay to Microgyn within five business days of such event 
an amount equal to Microgyn's documented out-of-pocket expenses incurred in 
pursuit of this transaction; PROVIDED that such decision not to approve or 
not to pursue is not based on fraud or willful misconduct on the part of 
Microgyn or its agents and PROVIDED, FURTHER, that such election is not based 
upon the circumstances set forth in Sections 13.1(a), (c), (d) or (f).

     Section 7.3   PUBLIC ANNOUNCEMENTS.  Except as provided for herein, 
Conceptus and Microgyn shall not from and after the date hereof and prior to 
the Effective Time make, issue or release any public announcement, press 
release, public statement or acknowledgment of the existence of, or reveal 
publicly the terms, conditions and status of, the transactions provided for 
herein (including any generally disseminated written communication to 
employees, customers or the trade) without the prior consent of the other 
party as to the content and time of release of and the media in which such 
statement or announcement is to be made; PROVIDED, HOWEVER, that in the case 
of announcements, statements, acknowledgments or disclosures which any party 
is required by law to make, issue or release, the making, issuing or 
releasing of any such announcement, statement, acknowledgment or disclosure 
by the party so required to do so by law shall not constitute a breach of 
this Agreement if such party shall have given, to the extent reasonably 
possible, not less than one calendar day prior notice to the other party, and 
shall have attempted, to the extent reasonably possible, to clear such 
announcement, statement, acknowledgment or disclosure with the other party. 
Each party hereto agrees that it will not unreasonably withhold any such 
consent or clearance.


                                     -36-

<PAGE>

     Section 7.4    AGREEMENTS TO COOPERATE.

          (a)  Microgyn shall take all reasonable actions necessary to comply 
promptly with all legal requirements which may be imposed on Microgyn with 
respect to the Merger and shall take all reasonable actions necessary to 
cooperate promptly with and furnish information to Conceptus in connection 
with any such requirements imposed upon Conceptus or Sub or any Subsidiary of 
Conceptus or Sub in connection with the Merger.  Microgyn shall take, all 
reasonable actions necessary (i) to obtain (and will take all reasonable 
actions necessary to promptly cooperate with Conceptus or Sub and their 
Subsidiaries in obtaining) any consent, authorization, order or approval of, 
or any exemption by, any Governmental Entity, or other third party, required 
to be obtained or made by Microgyn (or by Conceptus or Sub or any of their 
Subsidiaries) in connection with the Merger or the taking of any action 
contemplated by this Agreement; (ii) to lift, rescind or mitigate the effect 
of any injunction or restraining order or other order adversely affecting the 
ability of Microgyn to consummate the transactions contemplated hereby; (iii) 
to fulfill all conditions applicable to Microgyn pursuant to this Agreement; 
and (iv) to prevent, with respect to a threatened or pending temporary, 
preliminary or permanent injunction or other order, decree or ruling, the 
entry, or promulgation thereof, as the case may be; PROVIDED, HOWEVER, that 
Microgyn shall not be obligated to dispose of or hold separate all or a 
material portion of the business or assets of Microgyn taken as a whole.

          (b)  Conceptus and Sub shall take, and shall cause their 
Subsidiaries to take, all reasonable actions necessary to comply promptly 
with all legal requirements which may be imposed on them or their 
Subsidiaries with respect to the Merger and shall take all reasonable actions 
necessary to cooperate promptly with and furnish information to Microgyn in 
connection with any such requirements imposed upon Microgyn in connection 
with the Merger.  Conceptus and Sub shall take, and shall cause their 
Subsidiaries to take, all reasonable actions necessary (i) to obtain (and 
will take all reasonable actions necessary to promptly cooperate with 
Microgyn in obtaining) any consent, authorization, order or approval of, or 
any exemption by, any Governmental Entity, or other third party, required to 
be obtained or made by Conceptus or Sub or any of their Subsidiaries (or by 
Microgyn) in connection with the Merger or the taking of any action 
contemplated by this Agreement; (ii) to lift, rescind or mitigate the effect 
of any injunction or restraining order or other order adversely affecting the 
ability of Conceptus or Sub to consummate the transactions contemplated 
hereby; (iii) to fulfill all conditions applicable to Conceptus or Sub 
pursuant to this Agreement; and (iv) to prevent, with respect to a threatened 
or pending temporary, preliminary or permanent injunction or other order, 
decree or ruling or statute, rule, regulation or executive order, the entry, 
enactment or promulgation thereof, as the case may be; PROVIDED, HOWEVER, 
that Conceptus shall not be obligated to, nor shall Conceptus be obligated to 
cause its Subsidiaries to, dispose of or hold separate or otherwise 
relinquish all or a portion of the business or assets of Conceptus and its 
Subsidiaries, taken as a whole, or to change its or Microgyn's business in 
any way.

          (c)  The parties hereto will consult and cooperate with one 
another, and consider in good faith the views of one another, in connection 
with any analyses, appearances, presentations, memoranda, briefs, arguments, 
opinions and proposals made or submitted by or on behalf of any party hereto 
in connection with proceedings under or relating to any other federal or 
state antitrust or fair trade law.


                                     -37-

<PAGE>

     Section 7.5    STATE STATUTES.  If any state takeover law shall become 
applicable to the transactions contemplated by this Agreement, Conceptus and 
its Board of Directors or Microgyn and its Board of Directors, as the case 
may be, shall use their reasonable efforts to grant such approvals and take 
such actions as are necessary so that the transactions contemplated by this 
Agreement may be consummated as promptly as practicable on the terms 
contemplated by this Agreement and otherwise to minimize the effects of such 
state takeover law on the transactions contemplated by this Agreement.

     Section 7.6    ADDITIONAL AGREEMENTS.  

          (a)  In case at any time after the Effective Time of the Merger any 
further action is reasonably necessary to carry out the purposes of this 
Agreement or to vest the Surviving Corporation with full title to all 
properties, assets, rights, approvals, immunities and franchises of Microgyn 
and Sub, the proper officers and directors of each corporation party to this 
Agreement shall take all such necessary action.

          (b)  In the event that the Commissioner declines to approve 
Conceptus's Permit Application, or to grant or conduct the Hearing in 
connection therewith, as described in Section 6.2 above, the parties agree to 
negotiate in good faith toward an alternative solution with respect to the 
issuance of the Merger Shares and the provision of acceptable avenues for 
resale of such shares; PROVIDED, HOWEVER, that nothing in this paragraph 
shall prohibit any party from exercising its rights in Article XIII 
(Termination) below.

                            ARTICLE VIII

                           PROXY STATEMENT

     Section 8.1    PREPARATION.  Conceptus and Microgyn will cooperate in 
the prompt preparation by Microgyn of a proxy statement for submission to the 
shareholders of Microgyn in connection with the Microgyn Special Meeting (the 
"PROXY STATEMENT").  

     Section 8.2    REPRESENTATIONS, WARRANTIES AND COVENANTS OF MICROGYN.  
Microgyn represents and warrants to Conceptus that the Proxy Statement will 
not, at the time of its issuance, at the time of the Microgyn Special Meeting 
and at the Effective Time contain any untrue statement of a material fact or 
omit to state any material fact necessary in order to make the statements 
made, in the light of the circumstances under which they were made, not 
misleading except that no representation or warranty is made with respect to 
information set forth in the Proxy Statement concerning Conceptus or any 
Subsidiary thereof furnished by Conceptus or any such Subsidiary in writing 
expressly for use in the Proxy Statement.  Microgyn will promptly advise 
Conceptus in writing if at any time prior to the Effective Time it obtains 
knowledge of any facts that might make it necessary or appropriate to amend 
or supplement the Proxy Statement in order to make the statements contained 
or incorporated by reference therein not misleading or to comply with 
applicable law.

     Section 8.3    REPRESENTATIONS, WARRANTIES AND COVENANTS OF CONCEPTUS.  
Conceptus represents and warrants to Microgyn that the information set forth 
in the Proxy Statement


                                     -38-

<PAGE>

concerning Conceptus or any Subsidiary thereof furnished by Conceptus or any 
such Subsidiary to Microgyn in writing expressly for use in the Proxy 
Statement will not contain any untrue statement of a material fact or omit to 
state any material fact necessary in order to make the statements made, in 
the light of the circumstances under which they were made, not misleading. 
Conceptus will promptly advise Microgyn in writing if at any time prior to 
the Effective Time it obtains knowledge of any facts that might make it 
necessary or appropriate to amend or supplement the Proxy Statement in order 
to make the statements contained or incorporated by reference therein not 
misleading or to comply with applicable law.

     Section 8.4    MAILING TO SHAREHOLDERS; RECOMMENDATION OF MICROGYN 
BOARD; MICROGYN SPECIAL MEETING.  Microgyn will cause the Proxy Statement to 
be mailed to Microgyn's shareholders as soon as practicable after the receipt 
of the Permit from the Commissioner in accordance with applicable state law.  
Microgyn will call the Microgyn Special Meeting to be held as promptly as 
practicable for the purpose of obtaining the shareholder approval of this 
Agreement and the Merger and shall use all reasonable efforts to obtain such 
approval.  Microgyn shall coordinate and cooperate with Conceptus with 
respect to the timing of the Microgyn Special Meeting.  Microgyn shall not 
change the date of the Microgyn Special Meeting without the prior written 
consent of Conceptus, nor shall Microgyn adjourn the Microgyn Special Meeting 
without the prior written consent of Conceptus, unless such adjournment is 
due to the lack of a quorum, in which case the Chairman of the Microgyn 
Special Meeting shall announce at such meeting the time and place of the 
adjourned meeting.

                             ARTICLE IX

                  CONDITIONS TO THE OBLIGATIONS OF
                          CONCEPTUS AND SUB

     The obligations of Conceptus and Sub under this Agreement to consummate 
the Merger will be subject to the satisfaction, or to the waiver by them in 
the manner contemplated by Section 14.2, on or before the Closing, of the 
following conditions:

     Section 9.1    REPRESENTATIONS AND WARRANTIES.  The representations and 
warranties of Microgyn contained in this Agreement will be true and correct 
on and as of the Effective Time, except for changes contemplated by this 
Agreement and except for statements which address items only as of a 
particular date, with the same force and effect as if made on and as of the 
Effective Time, except, in all such cases, for such breaches, inaccuracies or 
omissions which in the aggregate do not have a material adverse effect on 
Microgyn's Business.

     Section 9.2    PERFORMANCE OF COVENANTS.  Microgyn shall have performed 
and complied in all material respects with each and every covenant, agreement 
and condition required by this Agreement to be performed or complied with by 
it prior to or on the Closing.

     Section 9.3    NO GOVERNMENTAL OR OTHER PROCEEDING OR LITIGATION.  No 
order of any court or administrative agency will be in effect which restrains 
or prohibits any transaction contemplated hereby or which would limit or 
otherwise affect in a material respect Conceptus's ownership of Microgyn; no 
suit, action, or proceeding by any Governmental Entity or other


                                     -39-

<PAGE>

person or entity, or investigation or inquiry by any Governmental Entity, 
will be pending or, in the case of a Governmental Entity, threatened against 
Conceptus, Sub or Microgyn, which challenges the validity or legality, or 
seeks to restrain the consummation, of any transaction contemplated hereby, 
including the Subsequent Merger, or which seeks to limit or otherwise affect 
Conceptus's ownership of Microgyn, and no written advice shall have been 
received by Conceptus, Sub, Microgyn or their respective counsel from any 
Governmental Entity, and remain in effect, stating that an action or 
proceeding will, if the Merger is consummated or sought to be consummated, be 
filed seeking to invalidate or restrain the Merger or limit or otherwise 
affect Conceptus's ownership of Microgyn and there shall not be any action 
taken, or any statute, rule, regulation or order enacted, entered, enforced 
or deemed applicable to the Merger, which would (a) make the consummation of 
the Merger illegal, (b) render Conceptus, Sub or Microgyn unable to 
consummate the Merger or (c) prohibit Conceptus', Sub's or Microgyn's 
ownership or operation of all or any material portion of the business or 
assets of Microgyn and its Subsidiaries, taken as a whole, as a result of the 
Merger, or compel Conceptus, Sub or Microgyn to dispose of or hold separate 
all or any material portion of the business or assets of Microgyn and its 
Subsidiaries, taken as a whole.

     Section 9.4    APPROVALS AND CONSENTS.  The approval of the shareholders 
of Microgyn referred to in Section 1.7 hereof, and all approvals and 
authorizations of the Governmental Entities and other third parties referred 
to in Sections 2.5, 2.6, 3.4 and 3.5 hereof and in the Microgyn Disclosure 
Schedule shall have been obtained.

     Section 9.5    OPINION OF COUNSEL.  Conceptus shall have received from 
Hemenway & Barnes, counsel to Microgyn, an opinion dated the date of the 
Closing and addressed to Conceptus, substantially in the form attached hereto 
as EXHIBIT C.

     Section 9.6    CERTIFICATE.  Conceptus shall have received a certificate 
signed by the Chief Executive Officer of Microgyn to the effect that the 
conditions set forth in Section 9.1 and 9.2 have been met.

     Section 9.7    DISSENTING SHARES.  The aggregate number of Dissenting 
Shares for which demands for payment are filed or may still be filed shall 
not exceed ten percent (10%) of the outstanding shares of Microgyn Capital 
Stock immediately prior to the Effective Time.

     Section 9.8    NO MATERIAL ADVERSE CHANGE.  There shall have been no 
material adverse change in Microgyn's Business from the date hereof through 
the Closing Date.

     Section 9.9    RESIGNATION OF OFFICERS AND DIRECTORS.  The officers and 
directors of Microgyn in office immediately prior to the Effective Time shall 
have resigned as officers and directors of the Surviving Corporation 
effective as of the Effective Time.

     Section 9.10   FIRPTA.  At the Closing, Microgyn shall deliver to 
Conceptus a properly executed statement conforming to the requirements of 
Treasury Regulation Sections 1.897-2(h)(l)(i) and 1.445-2(c)(3) and Microgyn 
further agrees to provide the notification to the Internal Revenue Service 
required pursuant to Treasury Regulation Section 1.897-2(h)(2).


                                     -40-

<PAGE>

     Section 9.11   MICROGYN WARRANTS.   All warrants, options or other 
rights to purchase shares of Microgyn Capital Stock shall have terminated by 
full exercise or cancellation thereof.  

     Section 9.12   EXCHANGE AND ESCROW AGREEMENT.  Conceptus, the 
Representatives, the Exchange Agent and the Escrow Agent shall have entered 
into an Exchange and Escrow Agreement substantially in the form attached 
hereto as EXHIBIT D.

     Section 9.13   NON-COMPETITION AGREEMENTS.  Conceptus shall have 
received at or prior to the Closing from each person referenced in Section 
4.11 of the Microgyn Disclosure Schedule a Non-Competition Agreement executed 
by such person.

     Section 9.14   MICROGYN ADVISORS.  Microgyn shall have obtained from its 
legal, accounting and financial advisors, and delivered to Conceptus, final 
invoices for services rendered by such parties in connection with the Merger 
which shall include the written representation of such advisors that such 
invoices set forth all fees and expenses incurred by or owed to such advisors 
by Microgyn in connection with the Merger.

     Section 9.15   TERMINATION AGREEMENT.  Microgyn shall have obtained from 
the parties in interest thereto an executed Termination Agreement in 
substantially the form attached hereto as EXHIBIT E.

     Section 9.16   EMPLOYMENT AND CONSULTING AGREEMENTS.   Keith Isaacson, 
M.D. and Craig Traub shall have delivered at or prior to the Closing a duly 
executed Consulting Agreement and Employment Agreement, respectively, in 
substantially the forms attached hereto as EXHIBIT G and EXHIBIT H.

                              ARTICLE X

                CONDITIONS TO MICROGYN'S OBLIGATIONS

     The obligations of Microgyn under this Agreement to consummate the 
Merger will be subject to the satisfaction, or to the waiver by Microgyn in 
the manner contemplated by Section 14.2, on or before the Closing, of the 
following conditions:

     Section 10.1   REPRESENTATIONS AND WARRANTIES.  The representations and 
warranties of Conceptus and Sub contained in this Agreement will be true and 
correct on and as of the Effective Time, with the same force and effect as if 
made on and as of the Effective Time.

     Section 10.2   PERFORMANCE OF COVENANTS.  Conceptus and Sub shall have 
performed and complied in all material respects with each and every covenant, 
agreement and condition required by this Agreement to be performed or 
complied with by each prior to or at the Closing.

     Section 10.3   NO GOVERNMENTAL OR OTHER PROCEEDING OR LITIGATION.  No 
order of any court or administrative agency will be in effect which restrains 
or prohibits any transaction contemplated hereby or which would limit or 
otherwise affect in a material respect Conceptus's ownership of Microgyn; no 
suit, action or proceeding by any Governmental Entity or other person or 
entity or investigation by any Governmental Entity, will be pending or, in 
the case of a


                                     -41-

<PAGE>

Governmental Entity, threatened against Conceptus, Sub or Microgyn, which 
challenges the validity or legality, or seeks to restrain the consummation, 
of any transaction contemplated hereby, including the Subsequent Merger, or 
which seeks to limit or otherwise affect Conceptus's ownership of Microgyn; 
and no written advice shall have been received by Conceptus, Sub, Microgyn or 
their respective counsel from any Governmental Entity, and remain in effect, 
stating that an action or proceeding will, if the Merger is consummated or 
sought to be consummated, be filed seeking to invalidate or restrain the 
Merger or limit or otherwise affect Conceptus's ownership of Microgyn and 
there shall not be any action taken, or any statute, rule, regulation or 
order enacted, entered, enforced or deemed applicable to the Merger, which 
would (a) make the consummation of the Merger illegal or (b) render 
Conceptus, Sub or Microgyn unable to consummate the Merger.

     Section 10.4   APPROVALS AND CONSENTS.  The approval of the shareholders 
of Microgyn referred to in Section 1.7 hereof, and all approvals and 
authorizations of the Governmental Entities and other third parties referred 
to in Sections 2.5, 2.6, 3.4 and 3.5 hereof shall have been obtained. 

     Section 10.5   OPINION OF COUNSEL.  Microgyn shall have received from 
Venture Law Group, A Professional Corporation, counsel to Conceptus and Sub, 
an opinion dated the date of the Closing and addressed to Microgyn, 
substantially in the form attached hereto as EXHIBIT F.

     Section 10.6   CERTIFICATES.  Microgyn shall have received certificates 
signed by the Chief Financial Officer or Treasurer of each of Conceptus and 
Sub to the effect that the conditions set forth in Sections 10.1 and 10.2 
have been met.

     Section 10.7   EMPLOYMENT AND CONSULTING AGREEMENTS.  Conceptus shall 
have delivered at or prior to the Closing a duly executed Consulting 
Agreement in substantially the form attached hereto as EXHIBIT G with Keith 
Isaacson, M.D., and an Employment Agreement in substantially the form 
attached hereto as EXHIBIT H with Craig Traub.

                             ARTICLE XI

                               CLOSING

     Unless this Agreement shall have been terminated and the Merger shall 
have been abandoned pursuant to a provision of Article XIII hereof, a closing 
(the "CLOSING") will be held, as soon as practicable after the satisfaction 
or waiver of the conditions set forth in Articles IX and X, at the offices of 
Venture Law Group, A Professional Corporation, 2800 Sand Hill Road, Menlo 
Park, California 94025.  At the date of the Closing (the "CLOSING DATE"), the 
documents referred to in Articles IX and X will be exchanged by the parties 
and, immediately thereafter, the Articles of Merger will be filed by Microgyn 
and Sub with the Secretary of State of the Commonwealth of Massachusetts.


                                     -42-

<PAGE>

                             ARTICLE XII

                        INDEMNITY AND ESCROW

     Section 12.1   INDEMNIFICATION.  

          (a)  From and after the Effective Time, the Microgyn Shareholders 
shall indemnify and hold harmless Conceptus, Conceptus's Subsidiaries 
(including the Subsidiaries of Microgyn) and the Surviving Corporation and 
their respective affiliates, officers, directors, employees, representatives 
and agents (collectively, the "INDEMNIFIED PARTIES") from and against any 
claims, losses, liabilities, damages, arbitration or any legal actions 
(including, without limitation, interest, penalties and reasonably incurred 
costs, expenses and legal fees and expenses) (collectively, "LOSSES") arising 
from or in connection with any breach of a representation, warranty, covenant 
or agreement of Microgyn contained in this Agreement, including any Exhibits 
or Schedules attached hereto, and the Articles of Merger, which breach 
becomes known to Conceptus within eighteen (18) months following the 
Effective Date.  Losses in each case shall be net of the amount of any 
insurance proceeds, indemnity and contribution actually recovered by 
Conceptus or the Surviving Corporation.

          (b)  The Microgyn Shareholders shall not be obligated to indemnify 
the Indemnified Parties pursuant to this Article XII with respect to any 
Losses pursuant to Section 12.1(a) until the aggregate amount of such Losses 
exceeds fifty thousand dollars ($50,000) (the "BASKET AMOUNT"), whereupon the 
Microgyn Shareholders shall be obligated to indemnify the Indemnified Parties 
for all of such Losses including and in excess of such amount.

     Section 12.2   ESCROW OF SHARES. On or before the date six months 
following the Effective Time, the Escrow Shares will be registered in the 
name of such nominee as the Escrow Agent shall determine, and will be 
deposited with an escrow agent appointed by Conceptus and reasonably 
acceptable to Microgyn (or, if such the identity of such agent shall need to 
change following the Effective Time, other institution acceptable to 
Conceptus and the Representatives (as defined in Section 12.6)), such agent 
being referred to herein as the "ESCROW AGENT" and such deposit being 
referred to as the "ESCROW FUND."

     Section 12.3   REMEDIES.  The Escrow Fund provided for herein is 
intended by the parties to this Agreement to apply to breaches of any 
representation, warranty, covenant or agreement of Microgyn contained in this 
Agreement, including any Exhibits or Schedules attached hereto, and the 
Articles of Merger, and, resort to the Escrow Fund shall be the exclusive 
remedy of the Indemnified Parties for such breaches; PROVIDED, HOWEVER, that 
the restrictions set forth herein do not limit any other potential remedies 
of  Conceptus for any fraud or willful deceit by Microgyn, its officers, 
directors, employees, agents or affiliates.

     Section 12.4   TERMS OF ESCROW.

          (a)  MAINTENANCE AND REDUCTION FOR CLAIMS.  The Escrow Fund will be 
governed by the terms set forth herein and in the Exchange and Escrow 
Agreement and maintained at Conceptus's sole cost and expense.  The 
obligation of Conceptus to issue the


                                     -43-

<PAGE>

Escrow Shares otherwise issuable in connection with the Merger shall be 
subject to reduction to satisfy the Microgyn Shareholders' obligations under 
this Article XII.  Claims for Losses made by Conceptus or any other 
Indemnified Party that (a) are accepted as valid by the Representatives (as 
defined in Section 12.6), or (b) are determined to be valid through court 
proceedings or which otherwise are allowed as described in this Article XII, 
shall reduce the number of Escrow Shares issuable to the Microgyn 
Shareholders by the number of Escrow Shares (rounded to the closest whole 
number) equal to the amount of such Losses divided by the deemed Initial 
Average Price for purposes of Section 1.3(b) above.  As to each Microgyn 
Shareholder, any such reduction shall be made on a pro rata basis based upon 
the Escrow Interest (as defined below) of each Microgyn Shareholder.  The 
interest of each Microgyn Shareholder in the Escrow Shares shall not be 
assignable or transferable in any manner except by operation of law, by will 
or by the laws of descent until such Escrow Shares are issued to the Microgyn 
Shareholders.  Claims for Losses made by Conceptus or any other Indemnified 
Party prior to the establishment of the Escrow Fund shall accrue and apply 
toward the Escrow Fund once established.

          (b)  DELIVERY OF ESCROW SHARES.  As soon as practicable after 
receipt of written notice from Conceptus that the Escrow Expiration Date (as 
defined below) has occurred, the Escrow Agent shall deliver the Escrow 
Shares, after giving effect to the reductions in or holdbacks of the number 
of Escrow Shares deliverable to Conceptus pursuant to Section 12.7 and, if 
applicable, Section 12.4(c) below.  The "ESCROW EXPIRATION DATE" shall mean a 
date on or before the date eighteen (18) months following the Effective Date, 
as determined by Conceptus.  The period commencing upon the Closing Date and 
ending upon the Escrow Expiration Date shall be referred to as the "ESCROW 
PERIOD" for the Escrow Fund.  Unless extended pursuant to Section 12.4(c) 
hereof, the Excrow Fund shall terminate on the Escrow Expiration Date. 

          (c)  EXTENSION OF ESCROW.  Notwithstanding Section 12.4(b), to the 
extent Conceptus has made a claim which has not been resolved in accordance 
with Section 12.7 below on or before the Escrow Expiration Date, the Escrow 
Agent shall withhold the issuance of and maintain in the Escrow Fund such 
number of Escrow Shares as instructed in writing by Conceptus and the 
Representatives and upon resolution of such claim such withheld Escrow 
Shares, after giving effect to any appropriate further reduction under 
Section 12.7(b), shall be transferred by the Escrow Agent into the respective 
names of the Microgyn Shareholders and the Escrow Fund shall terminate.

          (d)  PROTECTION OF ESCROW FUND.  The Escrow Agent shall hold and 
safeguard the Escrow Fund during the Escrow Period, shall treat such Escrow 
Fund as a trust fund in accordance with the terms of this Agreement and not 
as the property of Conceptus and shall hold and dispose of the Escrow Fund 
only in accordance with the terms hereof and of the Exchange and Escrow 
Agreement.

          (e)  DISTRIBUTIONS; VOTING.

               (i)     Any shares of Conceptus Common Stock or other equity 
securities issued or distributed by Conceptus (including shares issued upon a 
stock split) ("NEW SHARES") in respect of shares of Conceptus Common Stock in 
the Escrow Fund which have not been released


                                     -44-

<PAGE>

from the Escrow Fund shall be added to the Escrow Fund and become a part 
thereof.  New Shares issued in respect of shares of Conceptus Common Stock 
which have been released from the Escrow Fund shall not be added to the 
Escrow Fund, but shall be distributed to the holders thereof.  When and if 
cash dividends on shares of Conceptus Common Stock in the Escrow Fund shall 
be declared and paid, they shall not be added to the Escrow Fund but shall be 
paid to the Microgyn Shareholders on whose behalf the Escrow Shares are held.

               (ii)     Each Microgyn Shareholder shall have voting rights 
with respect to the Escrow Shares held on behalf of such Microgyn Shareholder 
(and on any voting securities added to the Escrow Fund in respect of such 
Escrow Shares) so long as such Escrow Shares are held in the Escrow Fund.

     Section 12.5   "ESCROW INTEREST" DEFINED.  Each Microgyn Shareholder's 
"ESCROW INTEREST" shall be a fraction calculated by dividing (a) the maximum 
number of Escrow Shares potentially issuable to such Microgyn Shareholder by 
(b) the maximum aggregate number of Escrow Shares potentially issuable to all 
Microgyn Shareholders.

     Section 12.6   MICROGYN SHAREHOLDERS' REPRESENTATIVES. During the Escrow 
Period, the Microgyn Shareholders shall be represented hereunder by Keith B. 
Issacson, M.D., and Paul Nardella or their designees (the "REPRESENTATIVES"). 
 The terms under which the Representatives will act will be as set forth in 
an agreement that will be approved at the Microgyn Special Meeting, which 
will be binding on all Microgyn Shareholders, irrespective of whether it is 
executed by such Microgyn Shareholders.

     Section 12.7   MECHANICS OF MAKING CLAIMS.

          (a)  In the event that any written claim or demand for which 
Conceptus or any other Indemnified Party is entitled to indemnification is 
sought against Conceptus or sought to be collected from Conceptus or any 
other Indemnified Party by a third party, promptly after the assertion of any 
such claim or demand, or otherwise promptly upon discovery of any other Loss 
for which Conceptus or any other Indemnified Party seeks indemnification, 
Conceptus or such other Indemnified Party shall notify the Escrow Agent and 
the Representatives of such claim, demand or Loss; PROVIDED, HOWEVER, that 
the failure promptly to give such notice shall not affect Conceptus's rights 
hereunder except to the extent that such failure shall adversely affect the 
Microgyn Shareholders or their rights hereunder.  Conceptus shall advise the 
Representatives of all material facts relating to such assertion within the 
knowledge of Conceptus, and shall afford the Representatives, in the event 
that they do not assume such defense pursuant to Section 12.7(d) below, the 
opportunity to participate, at their own expense, in the defense against such 
claims for liability, provided that Conceptus shall control such defense.

          (b)  As soon as practicable, but no earlier than the date 20 
business days following the later of receipt by the Escrow Agent and the 
Representatives of written notice from Conceptus or any other Indemnified 
Party of a claim of indemnification pursuant to this Article XII, including a 
brief description of the facts upon which such claim is based and the amount 
of the losses with respect to such claim, the Escrow Agent shall, subject to 
the provisions of Section 12.7(c), deliver to Conceptus or such other 
Indemnified Party out of the Escrow Fund, that


                                     -45-

<PAGE>

number of Escrow Shares (rounded to the closest whole number) equal to the 
amount of such losses divided by the Initial Average Price for purposes of 
Section 1.3(b) above.  Conceptus shall deliver to the Escrow Agent evidence 
of delivery of the written notice to the Representatives, and the Escrow 
Agent shall be entitled to rely on such evidence for purposes of calculation 
of the date on which the transfer of Ecrow Shares shall be made under this 
Section 12.7(b).

          (c)  If the Representatives shall, in good faith, notify Conceptus 
and the Escrow Agent in writing within such 20 business day period of their 
objection to a claim of indemnification, the Escrow Shares shall not be 
delivered to Conceptus or any other Indemnified Party until the rights of the 
Microgyn Shareholders and Conceptus or such other Indemnified Party with 
respect thereto have been agreed upon between the Representatives and 
Conceptus or such other Indemnified Party or until such rights are finally 
determined by a court of competent jurisdiction in San Francisco, California. 
 The Escrow Agent shall be entitled to act in accordance with such 
determination and to make or withhold payments out of the Escrow Fund in 
accordance therewith.  The costs and expenses (including reasonable counsel 
fees) of any such court proceeding shall be borne by the party against whom 
the award is rendered or, in the case of an award of a portion of the amount 
claimed, will be shared equally by Conceptus or such other Indemnified Party 
and the Microgyn Shareholders.

          (d)  Conceptus shall have the right (i) to defend, settle or 
compromise any claim or liability subject to indemnification under this 
Article XII, and (ii) to be indemnified from and against all Losses resulting 
therefrom, UNLESS the Representatives, within 20 calendar days after 
receiving such notice of the claim or liability in accordance with Section 
12.7(a) notify Conceptus in writing that they intend to assume the defense 
against such claim or liability and in fact promptly do so. 

          (e)  Except as otherwise provided in Section 12.7(d), the Microgyn 
Shareholders shall not be liable under this Article XII for any settlement 
effected without the  prior consent of the Representatives (which consent may 
not be unreasonably withheld) of any claim, liability or proceeding for which 
indemnity may be sought hereunder.  In the event that the Representatives 
assume the defense of any claim, liability or proceeding pursuant to Section 
12.7(d), the Representatives may not settle any such claim liability or 
proceeding without the prior consent of Conceptus (which consent may not be 
unreasonably withheld).

     Section 12.8   ESCROW AGENT'S DUTIES.

          (a)  The Escrow Agent shall be obligated only for the performance 
of such duties as are specifically set forth in this Article XII, and as set 
forth in any additional written escrow instructions which the Escrow Agent 
may receive after the date of this Agreement which are signed by an officer 
of Conceptus and by each of the Representatives, and may rely and shall be 
protected in relying or refraining from acting on any instrument reasonably 
believed to be genuine and to have been signed or presented by the proper 
party or parties.  The Escrow Agent shall not be liable for any act done or 
omitted hereunder as Escrow Agent while acting in good faith and in the 
exercise of reasonable judgment, and any act done or omitted pursuant to the 
advice of counsel shall be conclusive evidence of such good faith.


                                     -46-

<PAGE>

          (b)  The Escrow Agent is hereby expressly authorized to disregard 
any and all warnings given by any of the parties hereto or by any other 
person, excepting only orders or process of courts of law, and is hereby 
expressly authorized to comply with and obey orders, judgments or decrees of 
any court.  In case the Escrow Agent obeys or complies with any such order, 
judgment or decree of any court, the Escrow Agent shall not be liable to any 
of the parties hereto or to any other person by reason of such compliance, 
notwithstanding any such order, judgment or decree being subsequently 
reversed, modified, annulled, set aside, vacated or found to have been 
entered without jurisdiction.

          (c)  The Escrow Agent shall not be liable in any respect on account 
of the identity, authority or rights of the parties executing or delivering 
or purporting to execute or deliver this Agreement or any documents or papers 
deposited or called for hereunder.

          (d)  The Escrow Agent shall not be liable for the expiration of any 
rights under any statute of limitations with respect to this Agreement or any 
documents deposited with the Escrow Agent.

          (e)  The Escrow Agent may resign at any time upon giving at least 
30 days written notice to Conceptus and the Representatives pursuant to the 
provisions of this Agreement; provided, however, that no such resignation 
shall become effective until the appointment of a successor escrow agent 
which shall be accomplished as follows:  Conceptus and the Representatives 
shall use their best efforts to mutually agree upon a successor agent within 
30 days after receiving such notice.  If the parties fail to agree upon a 
successor transfer agent within such time, Conceptus shall have the right to 
appoint a successor escrow agent authorized to do business in California. The 
successor escrow agent selected in the preceding manner shall execute and 
deliver an instrument accepting such appointment and it shall thereupon be 
deemed the Escrow Agent hereunder and it shall without further acts be vested 
with all the estates, properties, rights, powers, and duties of the 
predecessor Escrow Agent as if originally named as Escrow Agent.  Thereafter, 
the predecessor Escrow Agent shall be discharged for any further duties and 
liabilities under this Agreement.

                               ARTICLE XIII

                               TERMINATION

     Section 13.1   TERMINATION AND ABANDONMENT.  This Agreement may be 
terminated and the Merger may be abandoned before the Effective Time, 
notwithstanding any approval and adoption of this Agreement by the 
shareholders of Microgyn or by Conceptus in its capacity as sole shareholder 
of Sub:

          (a)  by the mutual written consent of the Boards of Directors of 
Conceptus and Microgyn;

          (b)  by Conceptus or by Microgyn at any time after December 31, 
1996 (or such later date as shall have been agreed to in writing by them, 
acting through their respective Boards of Directors) if the Merger for any 
reason has not by such date become effective;


                                     -47-

<PAGE>

PROVIDED, HOWEVER, that this provision shall not be available to any party 
whose willful failure to fulfill any obligation under this Agreement has been 
the cause of, or resulted in, the failure of the Effective Time to occur on 
or before such date;

          (c)  by either Conceptus or Microgyn if a permanent injunction or 
other order by any federal or state court would make illegal or otherwise 
restrain or prohibit the consummation of the Merger shall have been issued 
and shall have become final and nonappealable; or

          (d)  by Conceptus if there has been a material breach of any 
representation, warranty, covenant or agreement contained in this Agreement 
on the part of Microgyn and such breach has not been cured within five 
business days after written notice from Conceptus to Microgyn (PROVIDED, that 
Conceptus is not in material breach of the terms of this Agreement; and 
PROVIDED FURTHER, that no cure period shall be required for a breach which by 
its nature cannot be cured);

          (e)  by Microgyn if there has been a material breach of any 
representation, warranty, covenant or agreement contained in this Agreement 
on the part of Conceptus or Sub and such breach has not been cured within 
five business days after written notice from Microgyn to Conceptus or Sub 
(PROVIDED, that Microgyn is not in material breach of the terms of this 
Agreement; and PROVIDED FURTHER, that no cure period shall be required for a 
breach which by its nature cannot be cured); or

          (f)  by Conceptus or Microgyn, if the required approval of the 
shareholders of Microgyn contemplated by this Agreement shall not have been 
obtained by reason of the failure to obtain the required vote upon a vote 
taken at the Microgyn Special Meeting or at any adjournment thereof to the 
extent determined to be necessary subsequent to the date hereof 
notwithstanding Microgyn's reasonable best efforts to ensure that such vote 
was obtained.

     The power of termination provided for by this Section 13 may be 
exercised for Conceptus or Microgyn only by their respective Boards of 
Directors and will be effective only after written notice thereof, signed on 
behalf of the party for which it is given by its Chief Executive Officer or 
other duly authorized officer, shall have been given to the other and all 
fees and expenses required to be paid under Section 7.2, if any, shall have 
been paid.  If this Agreement is terminated in accordance with this Section 
13.1, the Merger will be abandoned without further action by Conceptus, Sub 
or Microgyn.

     Section 13.2   EFFECT OF TERMINATION.  In the event of termination and 
abandonment of the Merger pursuant to Section 13.1, none of Conceptus, Sub, 
or Microgyn shall have any liability or further obligation to any of the 
others except as provided in Sections 7.1 and 7.2 and except for any breach 
of this Agreement.


                                     -48-

<PAGE>

                             ARTICLE XIV

                      MISCELLANEOUS PROVISIONS

     Section 14.1   AMENDMENT AND MODIFICATION.  To the fullest extent 
provided by applicable law, this Agreement may be amended, modified and 
supplemented with respect to any of the terms contained herein by mutual 
consent of the respective Boards of Directors of Conceptus, Sub and Microgyn 
or by their respective officers duly authorized by such Boards of Directors 
by an appropriate written instrument executed at any time prior to the 
Effective Time.

     Section 14.2   WAIVER OF COMPLIANCE.  To the fullest extent permitted by 
law, each of Conceptus, Sub and Microgyn may, pursuant to action by its 
respective Board of Directors, or its respective officers duly authorized by 
its Board of Directors, by an instrument in writing extend the time for or 
waive the performance of any of the obligations of the others or waive 
compliance by the others with any of the covenants, or waive any of the 
conditions to its obligations, contained herein; PROVIDED, HOWEVER, that the 
obtaining of the approval of the shareholders of Microgyn referred to in 
Section 1.7 hereof will not be waivable.  No such extension of time or waiver 
will operate as a waiver of, or estoppel with respect to, any subsequent or 
other failure.

     Section 14.3   NO SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The 
respective representations and warranties of each party hereto contained 
herein will not be deemed to be waived or otherwise affected by any 
investigation made by the other party hereto. Such representations and 
warranties will be extinguished by and will not survive the Effective Time, 
except with respect to the remedies set forth in Article XII and except for 
remedies that may be available for fraud.

     Section 14.4   NOTICES.  All notices, requests, demands and other 
communications required or permitted hereunder will be in writing and will be 
deemed to have been duly given when delivered by hand or when mailed by 
registered or certified mail, postage prepaid, or when given by facsimile 
transmission (promptly confirmed in writing), as follows:

          (a)  If to Conceptus or Sub:
          
               Conceptus, Inc.
               1021 Howard Avenue
               San Carlos, CA  94070
               Telephone No.:  (415) 802-7240
               Telecopy No.:  (415) 508-7646
               Attention:  Kathryn A. Tunstall, President and
                           Chief Executive Officer
          
               with a copy to:
          
               Venture Law Group,
               A Professional Corporation
               2800 Sand Hill Road
               Menlo Park, California  94025


                                     -49-

<PAGE>

               Telephone No.:  (415) 854-4488
               Telecopy No.:  (415) 854-1121
               Attention:  Michael W. Hall, Esq.
          
or to such other person as Conceptus or Sub designates in writing
delivered to Microgyn in the manner provided in this
Section 14.4;

          (b)  If to Microgyn:
          
               Microgyn, Inc.
               943 Commonwealth Ave.
               Newton, MA  02159
               Phone:    (617) 964-5383 
               Attention:  Keith B. Isaacson, Vice President
          
               with a copy to:
          
               Hemenway & Barnes
               60 State Street
               Boston, MA 02109
               Phone: (617) 227-7940
               Fax:      (617) 227-0781
               Attention:  Frederic J. Marx, Esq.

or to such other person as Microgyn designates in writing, delivered to 
Conceptus in the manner provided in this Section 14.4.

     Section 14.5   ASSIGNMENT.  This Agreement and all of the provisions 
hereof will be binding upon and inure to the benefit of the parties hereto 
(and in the case of Section 14.14 hereof, the persons intended to be 
benefited thereby) and their respective successors and permitted assigns, but 
neither this Agreement nor any of the rights, interests or obligations 
hereunder may be assigned by any of the parties hereto without the prior 
written consent of the other parties.

     Section 14.6   GOVERNING LAW.  This Agreement and the legal relations 
between the parties hereto will be governed by and construed in accordance 
with the laws of the State of California, without giving effect to the choice 
of law principles thereof; PROVIDED, HOWEVER, that the law governing the 
fiduciary duties of each party hereto and their respective boards of 
directors and the law governing any other matters of internal corporate 
governance of any of Conceptus, Sub or Microgyn shall be the law of their 
respective jurisdictions of incorporation.

     Section 14.7   PARTIES IN INTEREST.  Nothing expressed or implied in 
this Agreement is intended or will be construed to confer upon or give to any 
person, firm or corporation other than the parties hereto any rights or 
remedies under or by reason of this Agreement or any transaction contemplated 
hereby, except as specifically provided in this Agreement.


                                     -50-

<PAGE>

     Section 14.8   COUNTERPARTS.  This Agreement may be executed in two or 
more counterparts and by the different parties hereto on separate 
counterparts, each of which will be deemed an original, but all of which 
together will constitute one and the same instrument.

     Section 14.9   HEADINGS AND REFERENCES.  The headings of the sections 
and articles of this Agreement are inserted for convenience of reference only 
and will not by themselves determine the interpretation of this Agreement.  
All references herein to sections and articles are to sections and articles 
of this Agreement, unless otherwise indicated.

     Section 14.10  ENTIRE AGREEMENT.  This Agreement, including the Microgyn 
Disclosure Schedule and the Conceptus Disclosure Schedule, the schedules and 
exhibits and other documents referred to herein which form a part hereof, 
contains the entire understanding of the parties hereto in respect of the 
subject matter contained herein.  There are no restrictions, promises, 
representations, warranties, covenants, or undertakings with respect to the 
subject matter contained herein, other than those expressly set forth or 
referred to herein.  This Agreement supersedes all prior agreements and 
understandings between the parties with respect to such subject matter, 
including without limitation the Letter of Intent dated September 20, 1996 
between Conceptus and Microgyn.

     Section 14.11  SEVERABILITY.  If any provision of this Agreement, or the 
application thereof, will for any reason and to any extent be invalid or 
unenforceable, the remainder of this Agreement and application of such 
provision to other persons or circumstances will be interpreted so as 
reasonably to effect the intent of the parties hereto.  The parties further 
agree to replace such invalid or unenforceable provision of this Agreement 
with a valid and enforceable provision that will achieve, to the extent 
possible, the economic, business and other purposes of the invalid and 
unenforceable provision.

     Section 14.12  OTHER REMEDIES.  Except as otherwise provided herein, any 
and all remedies herein expressly conferred upon a party will be deemed 
cumulative with and not exclusive of any other remedy conferred hereby or by 
law or equity on such party, and the exercise of any one remedy will not 
preclude the exercise of any other.

     Section 14.13  FURTHER ASSURANCES.  Each party agrees to cooperate fully 
with the other parties and to execute such further instruments, documents and 
agreements and to give such further written assurances as may be reasonably 
requested by any other party to evidence and reflect the transactions 
described herein and contemplated hereby and to carry into effect the intents 
and purposes of this Agreement.

     Section 14.14  ABSENCE OF THIRD PARTY BENEFICIARY RIGHTS. Other than 
with respect to the Microgyn Shareholders, who are intended third-party 
beneficiaries to this Agreement, no provision of this Agreement is intended, 
nor will be interpreted, to provide to create any third party beneficiary 
rights or any other rights of any kind in any client, customer, affiliate, 
employee, partner or any party hereto or any other person or entity unless 
specifically provided otherwise herein, and, except as so provided, all 
provisions hereof will be personal solely between the parties to this 
Agreement.


                                     -51-

<PAGE>

     Section 14.15  MUTUAL DRAFTING.  This Agreement is the joint product of 
Conceptus and Microgyn, and each provision hereof has been subject to the 
mutual consultation, negotiation and agreement of Conceptus and Microgyn, and 
shall not be construed for or against any party hereto.


                      [Signature Page Follows]


                                     -52-

<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Agreement and 
Plan of Reorganization to be duly executed under seal as of the date and year 
first written above.
  
MICROGYN, INC.                            CONCEPTUS, INC.


By:                                       By:                      
   ----------------------------------        ------------------------------
              President

By:                                       Title:                        
   ----------------------------------           ---------------------------
              Treasurer            


                                          CPTS ACQUISITION CORPORATION


                                          By:                   
                                             ------------------------------
                                                       President

                                          By:                   
                                             ------------------------------
                                                       Treasurer



                                     -53-

<PAGE>

                            FIRST AMENDMENT TO 

                    AGREEMENT AND PLAN OF REORGANIZATION


     This First Amendment (the "AMENDMENT") to the Agreement and Plan of 
Reorganization (the "AGREEMENT") dated as of October 29, 1996 by and between 
Conceptus, Inc., a Delaware corporation ("CONCEPTUS"), Microgyn, Inc., a 
Massachusetts corporation ("MICROGYN") and CPTS Acquisition Corporation, a 
Massachusetts corporation and a wholly-owned subsidiary of Conceptus ("SUB") 
is made and entered into as of November 7, 1996.  Certain capitalized terms 
used herein and not specifically defined herein shall have the meanings 
ascribed to such terms in the Agreement. 

                                 RECITAL

     Conceptus, Microgyn and Sub desire to amend the Agreement to modify 
certain terms regarding additional agreements among the parties in connection 
with the transferability and resaleability of the Merger Shares.

     NOW THEREFORE, Conceptus, Microgyn and Sub, intending to be legally 
bound, hereby agree as follows:

     1.   AMENDMENT OF AGREEMENT.  Section 7.6(b) of the Agreement shall be 
amended and restated in its entirety as follows:

          "In the event that the Commissioner does or did not have the 
     authority to hold a Hearing with respect to the terms of the Merger 
     as described in Section 6.2 above, or in the event that the 
     Commissioner declines to grant or conduct the Hearing or issue to 
     Conceptus a Permit covering the Merger Shares, as a result of which 
     the exemption under Section 3(a)(10) of the Securities Act would be 
     unavailable with respect to the Merger, (i) Conceptus shall have 
     the option of substituting for any required payment of Merger 
     Shares an equivalent amount of cash, and (ii) Conceptus, Microgyn 
     and Sub (if such action occurs prior to the Closing) or Conceptus 
     and the Representatives (if such action occurs after the Closing) 
     agree to negotiate in good faith toward an alternative solution 
     with respect to the issuance of Merger Shares and the provision of 
     acceptable avenues for resale of such shares."

     2.   EFFECT OF AMENDMENT.  Except as amended as set forth above, the 
Agreement shall continue in full force and effect without change.

     3.   COUNTERPARTS.  This Amendment may be executed in one or more 
counterparts, and by different parties to this Amendment in separate 
counterparts, each of which when executed shall be deemed to be an original 
but all of which when taken together shall constitute one and the same 
agreement.



<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be 
duly executed under seal as of the date and year first written above.
  
MICROGYN, INC.                            CONCEPTUS, INC.


By:                                       By:                      
   ----------------------------------        ------------------------------
              President

By:                                       Title:                        
   ----------------------------------           ---------------------------
              Treasurer            


CPTS ACQUISITION CORPORATION


By:                   
   ----------------------------------
              President

By:                   
   ----------------------------------
              Treasurer





                                       -2-


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