could I be 5-6wks pregnant and not show positive on a test? could it still be too early? tested yesterday and it was a clear negative but I only had 2 days of spotting in March and no cramps at all and for the past couple weeks I've been so nauseous, getting headaches, and not getting enough food or drink. I'm constantly hungry and thirsty.. And I've been getting dizzy spells.. Can anyone help? I don't have insurance right now so I can't exactly go to the doctor. unless it's really necessary.