A member asked:

How long does it take for the birth control pill "generess fe" to be effective?

A doctor has provided 1 answer

It depends: It depends on when in your cycle you started the pills. If you started on the first day of bleeding, it's effective right away. If later in your cycle, it typically takes 7 days to take effect, so use back up prior to then. It also may depend on when you last had sex, and what you used for protection.

Answered 3/26/2013

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