Thanks for the replies ladies. And that's exactly what I mean, so many differing opinions out there, I don't know what to think! Mumma T, the no studies into pregnancy is of course a big worry in itself. Rowellan, I have read about metformin preventing miscarriages, and obviously having suffered one recently myself, this is a big consideration. BG and GW, we're you both taking it for pcos, or was it for diabetes? I wonder if it makes a difference if you are taking it for one reason over another....