So in the morning I masturbated and it came out and I wiped it all off. A few hours later my girlfriend was over and we decided to have a little fun and I fingered her some and I went all the way in (at least as far as I could reach) my pants were off too and i saw from pre-cum on my penis so wiped it off with my hand and then wiped it off my hand on my pants and then kept fingering a little more.  she's worried about being pregnant and now I'm worried too. Is it at all possible? (Yes she was ovulating)