Having been with someone who put his computer games before me, I understand what she was feeling but it still does not justify her cheating on you. Maybe you have not been perfect but the fact that you can admit to your mistakes says a lot about you, it takes a big person to do that especially after being betrayed. For me personally being cheated on is something that I could never get past I would not be able to stay with them. But some people are able to get past that, depending on how in love you still both are with each other and how much your marriage means to both of you then maybe you could try couples therapy or counseling together? It would be a big first step in showing her that you changed and are ready to put her first and be there for her. Maybe the counselor can give you tips on how to get past this and find a way to really see if you can trust her again.

About trying to conceive my husband and I have been trying for 2 years also, because of that, I have done A LOT of reading and research on infertility or just having a hard time conceiving. I do not have PCOS but I have read about many women who have had it and still got pregnant there are also many articles confirming that pregnancy IS possible with PCOS she might need medical help but it is not impossible. She can always try fertility treatments which is what I have been doing it’s a hard emotional road but you can get there. Also sometimes it’s just trying to stay positive and keep hope that it will happen also stress is a huge factor that can hinder getting pregnant. Sometimes it also just happens when it is supposed to she should try and see if she can find a support group or forum of women going through the same thing it could help her to know that she is not alone and give her some hope to read all the success stories people have.

The first step though before having kids is to see if you can fix your marriage to make it a strong and happy one. Good luck to the both of you. Sorry for the long reply.