5 doctors weighed in:
How soon does birth control pill start being effective if you start first day after next period?
5 doctors weighed in

Dr. Michael Kelber
Family Medicine
4 doctors agree
In brief: Birth control works
If you start your pills on day 1after your period, your pills should be effective almost immediately.
You will certainly be protected by the time you would have ovulated if youmweren't taking pills (approximately 2weeks after your period begins).

In brief: Birth control works
If you start your pills on day 1after your period, your pills should be effective almost immediately.
You will certainly be protected by the time you would have ovulated if youmweren't taking pills (approximately 2weeks after your period begins).
Dr. Michael Kelber
Dr. Michael Kelber
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