A member asked:

Took the plan b pill, had heavy 5 days period about 4 days after i took it (regular period wasnt due for about 13 days). does this mean im not preg?

A doctor has provided 1 answer

Hard to guess: Taking Plan B or other emergency contraception pills can alter the timing or the quality of the current menstrual cycle and the upcoming cycle. Plan B works most of the time, but not all of the time. Therefore, one should check a urine pregnancy 3 weeks after taking Plan B.

Answered 4/2/2018

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