Worried as to whether or not I could be pregnant

Ok. So I have a random question that I would like help answering. A few days ago my boyfriend and I were messing around and the condom slipped off inside of me. it didn't have any actual ejaculation but it did have a tiny bit of precum in it, and when it was pulled out, there wasn't anything inside of it. is there any chance it could have came out when he pulled out or should I be worried that there is a possibility that I may get pregnant?