I am an 18 year old male, and I recently had sex with my girlfriend. It was the first time for both of us, and not long into it, the condom I was using, which did not contain a spermicide, broke at the top. I heard the condom break, and the moment it happened, we stopped what we were doing. The condom was not inside her vagina at the time, however, it was very near the outside of it, as I was trying to put it in when it broke. I had not ejaculated yet, however, there was pre-ejaculate fluid inside the condom, some of which likely spilled out and onto and/or inside her vagina. Very shortly after, she also took a shower, hoping to wash anything away from that area. Some other information that may be important, I did masturbate the night before, however, I also urinated several times since then, so I do not know if there would be any sperm left in my penis that could have been in the pre-ejaculate fluid. Ultimately, we are very concerned about the situation, as we are only in high school and want to avoid a pregnancy. Given the situation, how likely is it, if at all, that my girlfriend will become pregnant? Should I buy the morning after pill? We are both very concerned, despite thinking that a pregnancy would be very unlikely given the situation, however, we have still been extremely nervous since it happened. Thank you for your help!