Ok here is my situation. I am 19, My ex and I only had sex one time but I had just switched birth controls that day?So whatever we broke up life goes on but I constantly have this thought of being pregnant in the back of my mind. (not because I want to be!) that month I had my period, it was maybe a week after we had sex.. After my period I started to feel kinda weird just extra moody and what not, then this month my period was 4 days late and only lasted a day and a half. My periods are always pretty much like clock work.. Now I'm feeling tired all the time, my appetite has increased a lot and this morning my breasts are sore?? I'm afraid to have a pregnancy test because I don't know what I would do if I was.. Am I just being paranoid??