Help me please?

Okay , sooo yesterday me and my friend with benefits were hanging out at like 1:00am in his car and one thing let to another and I started blowing him until he asked if I wanted to ride , of course I said yes cause I hadn't had sex in a while so I rode him until I heard him say " Get up, get up" so I got off of him cause he came and I was a bit paranoid after cause he DIDNT have a condom on and he told me that precum has non active sperm so nothing will happen and I was a bit scared cause I thought he might have gotten some cum in me and he looked in my vag and said that I'm good but I'm still kinda paranoid , I've had a pregnancy scare like a month or two ago . So , idk . Any advice ?