Could I get pregnant?

So my boyfriend and I were trying to get a little freaky in the bedroom last night and he decided he wasn’t going to use a condom. He said he was going to pull out because I am not on any birth control. He tried telling me that he would pay me to take a plan b because he didn’t know if he came in me or not. I don’t believe in plan b’s personally. No hate please!! What should I do or should I be worried that I possibly could get pregnant.?