I have something to say....
I had problems up until I was 23. The doctors always said I just needed to lose weight. When ever I did lose 15-20 lbs I came up pregnant. This is my third pregnancy. I also have a friend going through the same thing, but she never sticks to her weightloss and doesn't want surgery because she doesn't want to wait to become pregnant. I told her that if she had had the surgery she would be done with her waiting period. I was told that the fat stores are eating up the hormones that cause us to ovulate. That is why it can be difficult.