My Wife Had Here Tubes Burnt After Having A Child

My wife had here tubes burnt after having a child in a previous relationship back in 1993 when she was 18. We've been together since 2000. We've had countless arguements the first 5 years together about having children. Iv'e been quite about it since than yet its been eating me alive for the past 8-9 years. We are both 41 now and i dont know how much longer i can deal with this. Im not a rich person and cant afford IVF. She tried to get me to want to adopt but to me its just not the same. Maybe its jus me. Its been so bad that Iv'e been in a depression thats effecting me for the last 10 years. IM LOST!