The obvious answer is a pregnancy test I understand, but I, being sixteen, do not want to confront my parents with my paranoia of being pregnant. Well the basic point is a week ago my boyfriend and i were dry humping. He was wearing his boxers ad i was wearing only leggings no underwear. He says he didnt pre cum and i know for a fact he didt ejaculate. Yet i know my leggings were thin and his penis was erect. Is there a chance im pregnant? I have a severe back pain on my right sode and constant headaches. Its been a week and im unsure of my last cycle. ?