Unsure: No form of birth control is 100% effective. It depends on when you took the plan b. It should be taken within 72 hours. It can prevent up to 95% of anticipated pregnancies if taken within 24 hours of sex.
Answered 9/11/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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