If the Glucophage is working to control your insulin and your other hormones are shifting, then you may very well ovulate at a different time. How long have you been on Glucophage?
I just switched from Glucophage to Met 1700 mg. I was on the Gluc XR to to get me used to the medication. I've been on Gluc and/or Met since October 4th. Thanks for your reply