Well for the past couple weeks i have been having nausea [off and on throughout the day] and last sunday i threw up, i have been extrememly tired, i can go bout a half hr and then i just wanna crash. i have had a lil bloating and i had some cramps recently in the past few days. i have had headaches everyday, i forget things here and there, and lower back pain, i had AF on feb. 1st and got off of it on the 7th, but i had sex on the 6th. could i be pregnant? im really scared. AF is suppose to come next week.