i'm on birth control but i started a few months ago and i was being lazy and messed up on it and had unprotected sex. I've been seeing veins all over my breast and they are sore but they have been bigger since i've started the pill. I've calculated so if i were pregnant i would be about 7 almost 8 weeks pregnant. It seems like just last week is when i started getting really bad mood swings and headaches i 've i'm only feeling nauseous about 5 or late at night so no morning sickness. I barley been getting light cramping and my period hasn't came yet and i should be having it since i finished my last BC pack. I took a pregnancy test about two weeks ago and it came out negative. Idk am i just paranoid ?