Fertility problems

I went to my doctor last year on the 18th. He told me that I produced to much estrogen. So he gave me metformin to take to help it go down. No I'm not a diabetic. I just produce to much estrogen that I can't lost weight. My husband and I really want to start a family. I dont know what else to do, but to take the medication. But I feel like I need to something more. My eating habits have been changed for 3 months now and I can't lose weight. I feel like I'm hitting a dead end. Does anybody know what I can do.