Hi Deevadoll,
I was really sorry to read about your m/c. I am also taking Metformin and have since Oct 2003. But i was under the impression from my dr that it helps with insulin resistance, which then helps you to lose weight which in turn helps pcos symptoms, one being irregular cycles. I have had regular cycles despite the PCOS, and i'm not sure if this is due to the Metformin or not. Goodluck with ttc, and we are all here for you.