My fiance and I had sex on Friday the 18th, which i'm sure i was ovulating. The only thing is he pulled out, and I'm wondering of the pre-ejaculate, how high the percentages are for conception with pre-fluid. Thursday, the 24th, had been 6 days later and I was having slight cramping and brownish-pink when i wiped only for a little bit, nothing worth wearing a pad for. This weekend i got extreely nauseas for no reason and had to skip work! I'm expecting my period by this friday...