My boyfriend and I were fondling one anothe last Saturday. Well he was fingering me with one hand while playing with his penis with the other hand. His precum may have got on my vagina maybe even in it a bit. His penis did not touch my vagina, nor did his actual semen get on or near my vagina. I did give him oral and he came in my mouth and I swallowed. The next day I started have stomach cramps and three days later I threw up and had the runs. I had a stomach virus around two weeks ago. Do you think I could have gotten pregnant by his pre cum getting on my vagina or is it unlikely?