I am 16 years old, I finished my period around the 4/5th this month, and had well, I wouldn't even call it sex, but my boyfriend was inside of me for like 10/15 seconds but I wanted to stop cause it hurt, this happened exactly 7 days ago, it was unprotected, and I was just wondering what the chances are of getting pregnant from pre cum, and what I could do, if I am pregnant a week after having unprotected sex