I was with this girl for 3 weeks and then we had sex. I asked her if she was on the pill and she said yes. So I was ready to bust one out. I told her to get off and she didn't. so I tried pushing her off and some of it one in her and then she says "did you bust one and me". I told her I said you are on the pill,"does she says I'm not on any".and this happened within 40 minutes from this post. So I go drove to her house right away that took about 12 minutes. So she told me that she took a shower she clean her stuff and took about 10 shots alcohol. Saying that this should prevent anything from the future. Saying that the alcohol goes through the entire system within 24 hours.and she says "This is happened to me before 2 years ago and I wasn't pregnant when I was in the clear". So my question is to anybody. Does having shots of alcohol reduce your getting pregnant within 24 to 48 hours more or less?