So last night I went over to a friends house to spend the night and smoke. Well when I was there my girlfriend told me to go to her friends house so we could have sex. Well I fingered her, got a bj, ate her out ect.. Then we were going to fuck so I put a condom on. I then flipped her over on her back and just started to go ham. A few minutes later I looked down at my dick to notice that the condom wasn't on.. I pulled out and looked and 75% of the condom was in her vagina and the opening to the condom was open on the outside. What was I was wondering is if I possibly could have been fucking above or beneath the condom and not even knowing. We then stopped and I got really fucking worried because I'm only 15. I told her that I had to go and that I loved her. I then when back to my friends house and got hella baked to get my mind off of things. Then this morning she went to the store and got a plan B. Also, she got off her period 4 days ago or so. So bascially, is she pregnant?! I know that plan b is suppose to work, but what's the chances??