BC and Plan B: Plan B can cause spotting and bleeding during the following cycle. Not unusual for this to happen. Use Plan B ONLY if you have not been consistent with BC. Also do a home pregnancy test 3 weeks after unprotected sex to determine if you are pregnant. BC pills when taken properly are 99% effective in preventing pregnancy. Plan B is 95% effective when taken within 24 hours of unprotected sex.
Answered 4/21/2017
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A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
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