Hmmm re: withdrawal versus condoms. The numbers Planned Parenthoods for failure rates are 2% (condoms) and 4% (withdrawal) if used perfectly, same as Dan, but 15% and 27% for used imperfectly for withdrawal. I support him reassuring this guy that DON'T FREAK OUT YET CHANCES ARE GOOD YOU'VE JUST BEEN LUCKY, and that for safe/aware/not worried about STIs or pregnancy sexual partners withdrawal is a valid and effective option, but there is a much bigger difference between 15% and 27% than there is between 17% and 18%.