I am against premarital sex, but, if you are the sort of woman who would not support a pregnancy if it happened START TAKING THE PILL NOW. If you are a man who would urge his partner to get an abortion, or the kind who would leave after impregnating them, GET A VASECTOMY NOW. Even if you???re ???safe??? with your chosen partner, if you???re a a girl, and you would get an abortion if pregnancy occu