So me and my girlfriend had sex on Dec 31st and her period began on Dec 19-20. Two days prior i did not masturbate (only stroking it from time to time to make it special). I peed a lot that that day and while I was putting on the condom I foolishly put it on wrong then flipped it. We had sex with the flipped condom. What are the chances of pregnancy with Precum and ovulation factors thrown in. I had little Precum when putting it on. Please help