A member asked:

How long is it supposed to it take for microgestron birth control to start being effective?

A doctor has provided 1 answer

Scientifically: Scientifically, it works after 4 doses, but i wouldnt trust that. Use back up protection for on full cycle. Then, you are 98 percent protected. So always remember, that nothing is a guarantee. If you want to have sex and have the lowest rate of pregnancy, add condoms as well.

Answered 8/26/2013

4.9k views

Thank

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A member asked:

How long does it take for oral birth control to be effective?

A doctor has provided 1 answer