I am not sure that I: am tracking what you are saying. If you had sex 13 days after taking Plan B - it will not be effective. Even if he did not ejaculate inside of you - there may be pre-ejaculate that neither of you are aware of. If that is the case Plan B can be taken as soon as poossible after sex. Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. I
Answered 9/19/2017
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