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Calexico, CA
A 18-year-old female asked:

Been in b.c.pills for 4 days i started them the last day of last period i had unprotected sex took 12hrs before sex and 7hrs after can i be pregnat?

1 doctor answer2 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Depends: If this is the first time you have started the pill, the manufacturers warn that they should not be considered effective for at least 2 wks & you might be at risk of pregnancy. Many OB's suggest you have backup BC for the first month to be sure the body has adapted to their use. If you have been on them for several months you should be at minimal risk.

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Last updated Oct 3, 2020

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