Don't know if it was mine or his??! Please help!

So I've been seeing this guy for a little while and after we made our for a solid hour and doing some foreplay-kinda stuff,  we both decided we wanted to have sex. So I got a condom and he finished quite fast, but I didn't. He did stay inside me for about 2 min after he finished, but the condom was still tight, I think. So after a little bit he had to go home and I wanted to finish 🙈 but I felt like there was more...uh..."wetness" down there for me than usual. Granted, I haven't had sex in a while, but could it have been his cum and leaked out?? I'm not on BC.