[prettypetunia]

My wife has never taken PM all month long.

My dreamisgcup was able too because she was on the depo(progesterone shot) as her form of BC.

The justification for up to 3 weeks is when you look at the menstrual cycle figures. The estrogen levels are still somewhat elevated until the 3rd week.

However I don't believe you can do a program without progesterone of some sort. As time goes on the abundance of phytoestrogens overwork the receptors in the body and build up a resistance. But unlike other chemicals like caffeine. You can't just take more to get the same effect. Progesterone helps to re-sensitize the receptors to keep your PM effective.

PC cream just happens to be the most effective source. It may be a case of in Japan PC cream is not legal like Australia. Which may be why she uses b-up. Or it may not, who knows. But PC cream is the best available source to get guaranteed progesterone.

So do you think using a PM cream all month long is ok with the IUD Mirena??? It is a progesterone based IUD.