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Stanford, CA
A 19-year-old female asked:

I've been taking birth control for 3 weeks now and have been bleeding heavily the whole time. if i switch pills how long will it take to stop my period?

1 doctor answer3 doctors weighed in
Dr. Matthew Wilson
Obstetrics and Gynecology 14 years experience
See a doctor: Heavy bleeding while taking birth control pills is not common, and could be a sign that you are pregnant, have anatomic abnormality (like uterine fibroid), or that the bleeding is not coming from inside the uterus and is coming from the cervix instead. Changing brands should not make any difference.

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Last updated Oct 24, 2017


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