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
Thank
Get help from a real doctor now
Dr. Dennis Higginbotham
Board Certified, Obstetrics & Gynecology
26 years in practice
49M people helped
Continue
108,000 doctors available
Read more answers from doctors