Hi Doctor I have a question, me and my boyfriend were having outer course without any contact of genitals and I'm a virgin, although he ejaculated on my back when we were standing, the semen went down to my butt I'm not sure if it reached to my vulva or not, but I cleaned my back, butt and my vagina with water and tissues very quickly, is there a chance to get pregnant that way?? I should be expecting my period in 10 days. thanks in advance.