Yesterday me and my girlfriend were engaged in setual activity. She was on her 16th day of period cycle .I touched her vagina and fingered her . when she get relax then she hold my penis. It has pre ejaculate on it . then I told her that washed her hand with soap she did the same. At that time I grab my penis and put it in my underwear . I did not ejaculate as well as I also washed my hand with detergent bar soap . After washing my hand I just touched her clitoris not even penetrate my finger into it. I also did some dry humping but not ejaculate in the whole scenario. Can she get pregnant by this way?