While I wouldn't change my kids for the world, having babies can really throw a wrench in your body mechanics.
The biggest hurtle preventing weight loss with PCOS is the insulin resistance (and consequently, the resulting hormonal imbalance that follows, because after all, insulin IS a hormone). So, what's the solution? Possibly, a ketogenic diet. A low-carb (or ketogenic) diet may significantly improve weight, testosterone, ovarian function, and fasting insulin levels in women with PCOS. I have been on a variation of a low-carb diet for my entire twenties and into my early thirties. While PCOS is one of the most common causes of infertility, I did not have any fertility issues with either of my children. We were pleasantly surprised to find we conceived on our very first try, twice. In both instances, I can attest that I was on some form of low-carb for many months prior to conception. It's interesting that I develop PCOS symptoms when I have abandoned a low-carb lifestyle for many years.