My girlfriend and I were fooling around (as usual for college kids), and you could say we were dry-humping. As far as I can tell, I didn't ejaculate nor did I feel my penis touch her vagina (I tried my best to not come into contact with it). Both her and I were wet (from her excitement and from and my precum) but it wasn't a lot from what I can tell. I had boxers on, but she didn't have any undergarments . As far as I could tell, I didn't penetrate her. When I asked her about it the following night, she did say my penis touched her vagina only briefly, I am unsure whether or not it's the head or any other part that touched her. She had just ended her period on 4/16/18 and we did it on 4/18/18. My question is, could she be pregnant or is the a possibility of a pregnancy in this scenario?