A member asked:

Had my period on 4/11 and had unprotected sex on 4/19 during high fertility/ovulation. took plan b 54 hours later. will it work?

A doctor has provided 1 answer

120 hours: Plan B should be taken within 5 days (120 hours) of unprotected sex and can reduce the risk of pregnancy up to 89%. But it is more effective the sooner you take it.

Answered 4/22/2015

2.9k views

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