Tell me about your progesterone experience with your cycles & ttc. I just found out last week that I have low progesterone & the dr put me on a supplement that I take cd15-25. In january we had an early mc, prob because of the low levels. My cycles are pretty spot on at 28 days & I have never really noticed anything prior to being diagnosed. I courious if this will effect my cycles any. He also has me on metformin to help me lose weight & because of my history of diabetes.