I had sex about 3 weeks ago and took the plan b one step pill 28 hours after sex. I took 2 pregnancy tests (one of them I took 2 days after I was supposed to start and the other 3 days after) they both said negative. But I am now 5 days late and still no period. Any reasons?
You're probably late because you took plan B. It can make your period late. The manufacturer says if its more then a week consider pregnancy, but I've seen lots of girls here who were 2 weeks and more late. First response ones are supposed to be accurate before your period is late.
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