Take a free contraceptive test at BestMethodForMe.com
Managing Contraception Questions and Answers
Questions & Answers
Everything you ever wanted to know about managing contraception and weren't afraid to ask.

Click here to ask a question
Search the Questions & Answers Browse by Category
<< Return to questions

Would one act of unprotected sex hours before I removed the Implanon implant cause a pregnancy? #662/8
Hello, last friday I had my Implanon implant removed due to heavy constant bleeding.

The Tuesday before I had the implanon removed I had unprotected sex, which was approx 74 and a 1/2 hours before it being removed.

On that Friday I began the Sunday combined pill. As soon as I had the pill I began feeling sick after taking it and my glands are swollen up.  I have just had a bit of spotting but am really worried that there is a chance I could be pregnant (my general practitioner did not make it a concern that I should be protected prior to the implant removal and I've also researched that the implant makes the cervical mucus hostile for sperm, making it live only a few hours in the vagina. I have also called a sex help line and they said the chances of pregnancy is indeed very slim. However, I'm still worried and would like to hear from you.

Please reply as I'm too young to get pregnant.

Implanon works by stopping ovulation.  You took your first birth control pill 3 days after having your Implanon implant removed.  You can count on your pills as effective if you continue to take them each day.


 Initially I read your question wrong but you still have nothing to worry about.  Implanon was working by stopping ovulation on the day you had intercourse.  In fact, Implanon is the method of birth control that most effectively stops ovulation. No ovulation in 30 months!


         So on the day you had intercourse AND on the day your implant was removed, you were not ovulating.  Even if you didn’t start another method that would also stop ovulation, you would not ovulate for about 2 weeks.



Good luck!


Key Words:  Implanon implant removed, heavy bleeding, unprotected sex, combined pills, feeling sick, glands swollen, spotting, pregnant, cervical mucus hostile, sperm, vagina, stopping ovulation, effective

Posted 7-3-2008, Updated 7-11-2008 , Updated 7-24-2008, Updated 8-3-2008

Robert A. Hatcher MD, MPH
Emeritus Professor of Gynecology and Obstetrics
Emory University School of Medicine
Atlanta, GA

Managing Contraception for Your Pocket 2013-2014

Managing Contraception for Your Pocket 2013-2014

The directors and owners of this website and any publications and information concerning health matters offered here advise a person with a particular problem to consult a primary-care clinician or a specialist in obstetrics, gynecology, or urology (depending on the problem or the contraceptive) as well as the product package insert and other references before diagnosing, managing, or treating the problem.
Visitor Comments
No visitor comments posted.

Post a comment
Post Comment
To post a comment for this question, simply complete the form below. Fields marked with an asterisk are required.
   Your Name:
   Email Address:
* Your Comment:
* Enter the code below:
Related Questions
No related questions were found.
No attachments were found.

Suggestions, recommendations, questions, comments, data from the literature, interpretation of laboratory tests and other information provided on this site are for informational purposes only and are not intended to be relied upon as advice from or implied to be a substitute for the professional advice of a physician, nurse practitioner, nurse midwife, counselor or other healthcare professional. Always seek the advice of your clinician or other professional for any questions you may have regarding your health, medical condition, method of birth control and other family planning or personal/social issues. Periodic references to costs of birth control methods on this website are estimates only and your actual cost for any specific method of birth control may be more or less than the stated amount. Emory University School of Medicine, Bridging the Gap Foundation, and Bridging the Gap Communications Inc are not responsible for any damage or loss you may incur as a result of your use of or reliance on any material or information provided through this website.