Well how many DPO are you? Is it too soon to do a test? If I was in your situation, i'd wait it out. But then, i'm patient with that kinda stuff. If you still haven't had AF a week after shes due i'd go to your doctor just to put your mind at ease. I wouldn't test too early. As I would be affraid to get a + and then find out later i've had a very early m/c, but if i didnt test then i wouldnt be any wiser, like some of the other girls have experienced.