Could my girlfriend be pregnant?

dont worry yoursel the guy produces a little bit of semen before e ejaculates anyway as well as the girl as they gets wet!!! if she on the pill and the condom was on you should be fine there is no need to worry yourself... but i would say ye are bit young to be having sex but well done for been careful... but it sounds like ye should be fine... dont be worrying yourself !! rarely there is sperm in your semen at the start if you ejaculated fully then maybe a possiblity but otherwise she wont or is not pregnant ....