is pregnancy possible

this might be a stupid question to some but I really need some help, so yesterday I was at my bfs house and we did some freaky ass shit. we grinded on each other with our clothes off and he precummed. ik precum doesn't have sperm but he ejaculated before the grinding and precummed after. he didn't go inside me at all but is there a chance that I could be a pregnant. PS. this was 3 days after ovulation