A member asked:

What are disadvantages of progesterone only pills?

6 doctors weighed in across 2 answers

Irregular bleeding: The main drawback is that estrogen-free methods are associated with more breakthrough bleeding or irregular bleeding.

Answered 8/2/2014

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No estrogen: #1 slightly higher risk of unintended pregnancy. #2 less effective "cycle control" as compared to "regular" or combination ( progestin and estrogen) birth controp pills. On the positive side, they can be used while nursing or other times when estrogen is inappropriate.

Answered 5/7/2013

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