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I had unprotected sex 4 days before my period was due. I took plan b two hours after. I have read that women have gotten their period a few days after unprotected sex but did not get their next period and were pregnant. I am expecting my period tomorrow but am worried that I’ll get this period and not the next. How long should I wait to take a pregnancy test just to be sure?


Hi Guest,

Relax.  You are unlikely to get pregnant having sex within about 10 days before your period is due.  At 4 days before, it's EXTREMELY unlikely you'd get pregnant.

There is no viable egg to fertilize.  Your fertility is decreasing very rapidly too.

Plan B can make your next SEVERAL periods early or late.  Wait at least 2 weeks before you take the pregnancy test.

Hope it helps.