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Do I need backup birth control during the first month after switching from LoEstrin 1/20 FE to Yaz?
Do I need backup birth control during the first month after switching from LoEstrin 1/20 FE to Yaz?
To be safe, you should use a backup for the first 7 days of starting the new pack. Check the instructions though, usually they say what to do in the case of changing to a new brand.
no