I think he accidentally came inside of me

I’m on the pill and take it at the same time everyday never missed any. I always make that a priority. Usually I like to have sex with condoms just for extra protection, but me and my bf had sex without a condom just yesterday and I think he might have came inside of me a little bit? Idk he asked me afterwards if he got any inside of me and I said I didn’t know cuz... of course I didn’t like it’s his job to pull out in time ya know? And then he said “idk if I did but you take ur birth control so we’re good”. And I saw him cum cause he came on me, and it was a lot of cum so I don’t think he got that much in me if he did. Should I worry? My pill has got me covered, right? gonna continue to do it with condoms from now on lol.