... Then, 4 days later on July 4th, my boyfriend and I had unprotected sex. I was really paranoid, so the next day I went and bought the Plan B pill, unfortunately it was the heat in the moment type of thing and we had unprotected sex once again after I took the pill. About a week later, July 13th, we had sex once again. I heard it takes a pretty good amount of time for the shot to actually start working. Is there any possibilty that I could get pregnant this way? PLEASE HELP! And also, he didn't ejaculate in me, but I fear that he did pre cum in me all three times. Thank you in advance :)