I have been off BC for about a month. Two weeks ago I spotted but then it was gone. I have been cramping for a week and a half. I also have lower back pains and tend to use the bathroom more frequent. I really only missed my period by a day, but I still took a test which was negative. Did I test to soon and can I still be pregnant. Oh and I have been nauseated for 3 days and vomited twice today???