Probably a dumb sex question but lol advice needed

My bf and I were doing mutual masterbation, I was on top of him while he was at the end, I was kissing his neck so my bum was in the air and he finished on his lower abdomen. We kissed for a few seconds and then I sat down on him again not realizing he had finished on himself. I got up again pretty quick after I sat down and was like ah! Wet!

I’m not looking to get pregnant, it was truly an accident

Do you think I should be really worried? I cannot take plan b as I’m allergic to an ingredient in it.