I can't make my boyfriend cum

Me and my boyfriend are both 18. We've been together for 8 months and we had sex for the first time last night. My boyfriend didn't really seem into it. Like at ALL. I made me feel weird seeing je wasn't enjoying it. After we got done he took of the condom and I noticed nothing was in it. I asked my boyfriend if he orgasmed and he said no. I asked if I did something wrong and he says "No. I've never had an orgasm". I thought he was lying but he said he wasn't and he guesses some people just don't orgasm. He seems not worried about it but what could be the reason he doesn't orgasm. Would it have to do with he didn't look into it when we had sex for ☹