It is safe to be on the MiniPill while BFing. Condoms, the cap (diaphragm), copper IUD's and IUS's are also licensed as safe. The Mirena IUS is the lowest dose of the hormonal ones and the condoms/cap are the least invasive (i.e. you can just dispense with them rather than having to have them takes out or wear off). Some women find the hormonal methods slow let-down.

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