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Plan B and Menstrual Changes

By Anonymous March 1, 2012 - 7:53am
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I had sex on the 4th of the month, took plan b on the 7th and got my "period" on the 13th. I bled from the 13th to about the 17th or 18th and had sex again on the 19th. When I had sex on the 19th my partner pulled out. Is there a strong possibility I was fertile the day after bleeding? Is bleeding the week after Plan B considered a period or "withdrawal bleeding"?

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Hi Anon,

Thanks for asking. You hit the nail on the head with your title, and your Plan B "period," as that "period," may have been a side effect of Plan B.

However,we are most fertile after our period, so having unprotected sex should be avoided. Regardless if it was your actual period, or just a side effect of Plan B, unprotected sex should be avoided, as it's hard to say whether you were fertile or not. 

In the future, it's best to use more sustainable methods of contraception, as Plan B shouldn't be consistently depended upon, and the worries are never fun.

Please visit our Sexual Health 101 page for information all about sex, pregnancy, and birth control:



March 1, 2012 - 8:34am
EmpowHER Guest
Anonymous (reply to Danielle Serrano)

Typically fertility is the 2 weeks before your period. I'm just wondering if this episode counts as a period as it was 2 weeks before I normally would get my period ( also was the week I was ovulating). I guess I was thinking that my uterus, after the week of bleeding, would be inhospitable at that point.

March 1, 2012 - 8:43am
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