Depends: on if you took Plan B within 72 hours of unprotected sex (when Plan B is most effective) and if you weigh <155lbs (Plan B less effective > 155lbs, and likely ineffective if weigh > 165lbs). Plan B can cause a shift in one's next menstrual cycle so what you are experiencing may be normal. You can check a urine pregnancy test to be sure.
Answered 7/14/2017
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Please take a HPT: home pregnancy test if you haven't already done so.
Answered 11/28/2017
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A doctor has provided 1 answer
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