A member asked:

Does plan b work 22hours after unprotected sex. only pre ejaculate and on most fertile day?

2 doctors weighed in across 2 answers

Yes: For it to be effective, it needs to be taken within 72 hours of unprotected intercourse. Expect that you will experience some confusing breakthrough bleeding and a delay in your next cycle. Also, check a pregnancy test in about 2-3 weeks.

Answered 5/30/2015

4.3k views

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Dr. Heidi Fowler answered

Specializes in Psychiatry

Yes Plan b: is effective any time during the cycle if used promptly.

Answered 5/30/2015

2.8k views

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