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A member asked:

Is it possible for a plan b pill to affect your period 3 months after you took the pill?

A doctor has provided 1 answer

Usually not: Plan B can alter the menstrual-type bleeding for the cycle in which Plan B was taken, and sometimes the next cycle too. One should be sure to check a home pregnancy test about 3 weeks after sex, because Plan B works most of the time, but not all the time.

Answered 8/1/2017

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How effective is plan b when taken within 12 hours? Five days later bled heavy for three days two light days. Was that my period? Or from pill?

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Hello I was supposed to start my period today but I didn't. I took a plan b pill 2 weeks ago and had unprotected sex three days before my period. My b?

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