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A member asked:
When should someone take plan b?
A doctor has provided 1 answer
Within 72 hours of: failed contraception. Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. It continues to reduce the risk of pregnancy up to 120 hours (5 days) after unprotected sex, but is less effective as time passes.
Answered 11/18/2014
3.5k views
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Related Questions
A member asked:
Can someone take plan B pill two days after the first one just to make sure? Is it gonna still work?
A doctor has provided 1 answer
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