I suggest reading some Mary Roach. On her cycle and her fertility. My psychologist told me once that it also has to do with how we 'chose our mate for reproduction'. Don't do it unless you are in a committed relationship and if you can't deal with the potential chance of being a father, just wear a condom. Delete Report Edit Reported Reply.
I've never heard of said studies, but one thing I know for sure is that you guys should be wearing a condom.
Start over with day one. Her fine body is so tight and hot. Just bust in your girl if she's on the pill. The pill isn't "perfect". We believe knowledge is power. What's wrong with this question?