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What is the risk of pregnancy if a birth control pill is taken 3 hours late?

Asked by tramnineteen (741points) October 22nd, 2009

My girlfriend took her birth control pill 3 hours late. She is near the end of the active pills in the pack. I can find advice on what to do if pills are forgotten for a day, but we want to know the risk of pregnancy given she took it as soon as she remembered but not before we had unprotected sex.

I am looking for statistics that are more specific than what I have found so far.

The pills are labeled with the following terms:

Ocella

Drospirenone and ethinyl estadoil tablets

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