So Im 18 years old and havent gotten my period, I am 7 days LATE! I havent been late for 2 years. Ive been overly dizzy everytime I stand up, or sometimes when I turn my head, I feel nauseas. Tearing the kitchen up!!! I am currently sexual active, but for the past months I have been and I have not gotten pregnant. I thought I couldnt have kids but I am not sure now! My lower back is killing. As of two days agomy nipples have been sooo sore and swollen and my breasts are KILLING ME! I havent even put a bra on, ive been inside for 3 days! Anyone have an idea on whats wrong? Im taking a pregnancy test in 4 days