Hey ladies! I have a question. I am thinking that i am due for AF Friday, but i could be wrong. HOwever the last 2-3 days i have been so tired i feel like i have been hit by a truck. Also my lower back has been hurting really bad. Now today i have been at work and have been so nauseous that i have been to the bathroom 3 times trying to throw up and nothing will come. I feel faintish and kind of weak. What do you all think this is? Could i be pregnant?