Unlikely: Plan B is 95% effective if taken within the first 24 hours but it does cause irregular bleeding.3weeks later, if your pregnancy test is negative, it is unlikely that you r pregnant. To be absolutely sure, you could repeat the test 3-5 days after the last. This is a good time to get in and get started on a more reliable method of contraception to save yourself this worry in the future. Good luck.
Answered 10/9/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
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