So me and my girlfriend were having sex and the condom slipped off inside of her, we continued for about 2min until we realized and then we stopped and got a new condom on and continued. I didn't ejaculate inside of her and idk if there was any precum but possibly there was. Before the sex the last time i ejaculated was 2 days before and i went to the bathroom many times in between the last time and the sex. My biggest concern is that my girlfriend is on day 11 of her cycle and i'm concerned she will be ovulating soon. How much of a chance, if any, is there for her to get pregnant. Do you recommend we get plan B (the sex happened tonight).