Could I be pregnant?

My boyfriend and I recently did the dirty and he did pull out on time. I am not on birth control and he didn't wear a condom. Though, we did eventually go for round 2. I don't think he wiped off his ya know when he stuck it back it..so could i still have a chance of being pregnant just because of that?..And not to mention my period did not come the next day and I am now 4 days late..😅