I'm so frustrated I want to cry. I have had very light spotting on and off since Monday. My uterus feels weird with a mild cramp here and there. My boobs have been sore for two weeks. I'm nauseous all the time and am hardly eating. I sleep 24/7 when I don't have to work. Yet I'm getting BFN. I never spot this long, my period is normally so heavy I change tampons every 1/2 hour. My cycle always starts on time.