I have been dating my boyfriend almost a year now, I love him, he's a very sweet person

I have been dating my boyfriend almost a year now, I love him, he's a very sweet person. however we have a situation, a situation that i know God has in control, he never had kids before consequently a surgery that he had at a very young age, he ending up having one testicule , low sperm count, desperate, hopeless, but I believe God can fix what's is broken, he doesn't believe that he can become a father, now what I'm asking you guys is what can I do to convince him to go to see doctors with me? because he tried so hard in previous relationship he doesn't wanna give another try, I have faith in God one day he will be a dad please pray for us....pray. I wanna be the woman to give him the best gift of his life ever, "a baby". ..Thank you. PRAYER CHANGE THINGS pray for us.