A member asked:

Changing from pop pill(cerelle)to combined, says start on 1st day of period-don't have them on this pill?how do i change,when will i b protected?

A doctor has provided 1 answer
Dr. Brian Nguyen answered

Specializes in Obstetrics and Gynecology

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

2.4k views

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