A member asked:

How long does it take birth control pill to prevent pregnancy?

A doctor has provided 1 answer
Dr. Nikolaos Zacharias answered

Specializes in Maternal-Fetal Medicine

One cycle.: After you finish your first month's packet your ovulation should be suppressed and the risk of pregnancy should be <1-9%.

Answered 7/27/2012

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Can all birth control pills prevent pregnancy?

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