I am an exclusive pumper due to the fact that we had to supplement when my DS was 3 weeks old and he got attached to the bottle. I tried EVERYTHING and nothing helped. Anyway, my DS is now 7 1/2 months old, and I want to pump until the end of Feb, which will get him through cold season. I hate pumping and am tired of being tied to the pump. I just wanted to let everyone know that since I recently started on the progesterone only pill, my suppply has DROPPED! I don't plan on discontinuing it, but if I ever have another baby (which I'll hopefully breastfeed) I will not use this pill until I'm ready to wean. My dr is a very pro breastfeeding and assured me that it would not affect production, but my supply dropped by half a few days after I started it. Anyway, I thought I'd let everyone know that this may be a factor if you are concerned about supplly. HTH.