I came at 6 in the morning, i peed twice on that morning after ejaculation and took a bath. In the afternoon, me and my girlfriend played around. I masturbated got precum on my fingers and touched the vagina lips of my girlfriend. But I did not cum yet. But after a minute she washed her vagina with water and soap. Could she possible be pregnant? We did it 4 days before her expected period. An answer could be very helpful.