Start now: If you are switching from one pill to another, even if it is progesterone only, the effectiveness should remain the same and you should be protected. You can start your progesterone only pill immediately and you do not need to wait until you have a period.
Answered 8/27/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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