A member asked:

I last saw my periods on the 21st of july and been waiting till today but no sign,i am sexually active and have been on morning after pills.have tested pregnancy 4 times and came negative and picked up a bit of weight lately.what could be the cause?

A doctor has provided 1 answer

Tests are accurate: Taking Plan B or other emergency contraception pills can alter the timing or the quality of the current menstrual cycle and the upcoming cycle too. One should check a urine pregnancy three (3) weeks after taking Plan B, because Plan B works most of the time but not all of the time.

Answered 9/1/2020

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