5 days ago my boyfriend and I were messing around without a condom on. I believe he had gotten pre-cum between the region of my anus and vagina opening, or just directly on top of it. I cannot recall. However, he DID NOT ejaculate on me--only precum. Being cautious, I took Plan B the day after just incase. However, as of right now, I am experiencing very mild cramps. Nothing too painful. I also feel as if I have something in my throat, I feel as if food is traveling up my throat. I do not have a strong urge to throw up, it is just very uncomfortable. All in all, could I be pregnant?