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A member asked:
Chances of plan b failing taking 2 hrs after unprotected sex? took pregnancy test wk later, negative. chances test was wrong? paranoid. had 3 periods
4 doctors weighed in across 2 answers
Small: Plan B has about a 98% efficacy when taken within the first 24 hours after unprotected sex. You are probably safe. It does take about 10 days for a pregnancy test to become positive so you should repeat the test after another week.
Answered 1/31/2015
3.5k views
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Not pregnant: You may need to see a doctor and have a blood based pregnancy test for piece of mind. Avoid unprotected sex for this and other reasons. Hang in there.
Answered 5/18/2016
3.5k views
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I had unprotected sex on Nov 4th 2022, and took plan b immediately, my period is supposed to start on Nov 10th 2022 (last period started on Oct 14th 2022) Im almost two days late, took two pregnancy tests yesterday, both negative, can i be pregnant?
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