Don't know what to do I need some hope

OK me and my husband have been trying for a baby he had one of his testicles ruptured when he was younger and the infection spread to his penis so doctors had to circumsize him and they told him he had a 50 50 chance of having kids since then in July of last year we had our first son which passed away at 6 weeks old due to sids and we were devastated.its been a few months and we have been trying for another baby with no luck I made us an appointment with a midwife to see about getting pregnant but I don't know what to expect and I have been really emotional about it cause I really want another child and so does he and he is trying to be supportive and wants me to talk to him but doesn't know what to say to make it better it's really hard not to get discouraged but I'm trying to keep Hope and pray that it's an easy solution to our problem