Dear Dr. Hi im a 18yearold girl. I have been dating my boyfriend for quite along time. Monday we both had sex.(it was my first time). He had a condome and used it properly and he was very catious and went extremly slow since it was our first time. then on thursday we didnt have sex but I swalloed his cum (by the way it was digusting). But ever since then my stomach has ached alil, and I feel consitpated. I was worried so I took a pregneatcy test on saturday. but it showed negative. If i think about being pregneat I tend to feel sick, even though i know im not. Were both waiting for my period to come about next week. what do you think?... Could i be pregneat?