Boyfriend thinks I'll never have kids it's pissing me off

 We've been trying for only 5 or 6 months and my boyfriend thinks he can't have kids anymore because he took anti depressants for 6 years before he met me and he thinks that his sperm is already damaged because of that he can't have it checked because his insurance company won't cover that. I keep telling him it hasn't even been a year yet like what the hell and he's all like I don't think we can have kids anymore because of the meds I used too take. Is that even possible? He Chlonodine zoloft and a couple others. Also Welebutrin however you spell it he keeps telling me you'll never become a mom and now it's making me mad that I don't even wanna argue and he obviously doesn't get it. We're only in our 20s.