The limit is 72 hour: There is a script pill called Ella (ulipristal acetate) that will work up to 96 hours after but your doc must prescribe it so please call your obgyn today or go to an urgent visit center.
Answered 6/25/2014
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Don't expect: strong protection after 72 hours. 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 9/19/2017
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