I don't ovulate and take Prometrium every couple months to induce AF. But, since starting Metformin (1700mg per day) I have been ovulating, though it is very late. This cycle I ovulated on CD43. Not great, but better than not ovulating at all!
The first time I started on Metformin it took about 2 or 2.5 months, and I ovulated. As far as I know, this is the first time I have ovulated in years. I can easily go 6-9 months without a period. On my very first ovulation I got pregnant. I had an MC at 10 weeks. I had a lot of issues afterwards and couldn't start back on Metformin for almost 2 months. I started Metformin on CD1 of this cycle (my first proper cycle after MC) and on CD43 I ovulated (confirmed by blood test, Progesterone level of 33). So it's definitely doing something for me. If I am not pregnant by November, my FS will have me start Clomid on top of the Metformin to try to get an earlier ovulation.
I know Metformin doesn't work for everyone, but it's working for me.
Good luck Ann, I know you've been through a lot. Are you taking just the Clomid? Or Clomid and Metformin together? I don't know why but my FS says that they work better together.