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If ovualtion does occur, when does ovulation occur while taking the pill? #671/6

I have been reading that ovulation does not occur during the week of the 7 inactive pills. If it doesn't happen then, when does it occur while taking the pill?

Lost of helpful information on the website



Usually ovulation does not occur while taking birth control pills.  Their primary contraceptive effect is to prevent ovulation throughout the month, including the days when you were taking placebo pills.


In the occasional woman who does ovulate, ovulation occurs on about day 5 to 7 of active hormonal pills. When this happens pills protect against pregnancy by causing thickened cervical mucus or by changing the lining of the uterus so that implantation does not occur, even if ovulation has happened.



            Taken correctly, only 3 out of 1,000 women having intercourse for a year, become pregnant.



Key Words:  Triphasil birth control pills, ovulation, inactive pills (placebo), occur


Posted 7-10-2006, updated 7-13-2006, Updated 7-24-2006, Updated 2-18-2007

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

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.
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