Pre-cum and vulva IM PARANOID

A few days ago me and my boyfriend were having a pretty steamy makeout sesh in his living room. As things escalated we went to his room. He asked if he could go in my pants (mind you we've only ever done handjobs and oral never vaginal sex) after some time of me stroking him I felt precum on his tip I wiped it on my hands but it did get on my pants. then he moved his penis in between my legs he got some precum on my panties I was nervous but extremely aroused about what had just happened and what could've preggressed. He didn't go in but he did keep it there. Essentially just in between my labia and at the end of my arse. I just want to know and make sure that I'm not pregnant from this. He did not go in, but I'm not sure if precum got on me. But even if it did, i did some research and precum has a very low possibility of getting one pregnant. Still my boyfriend is fairly paranoid, were waiting on my period which should arrive in about a week.