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Philadelphia, PA
A female asked:

I had unprotected sex the same day my menstrual ended, which was when my last bc pill was taken. i didnt start new pack for 2 days...possibly prego?

1 doctor answer1 doctor weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Possible, but...: It can be hard to guess whether a woman is pregnant or not. A urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period, or after having a "weird" period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test.

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Last updated May 7, 2018

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