Why is she testing a whole week before her period is due? That is WAY too soon. I would say she needs to wait until after her period is due before retesting, she still could be pregnant, but it is really early.
Ok so she thinks she could have gotten pregnant about 2 and a half weeks ago. Her and her husband were trying. She took a blood test 2day it came back negative. Shes not suppose to start period till the 24th. She feels like shes pregnant. Do you think the blood test was just to soon??
I'd tell her to wait til the day of her missed period before testing again. It sounds kind of soon to me. It takes about 4 to 6 days for a fertilized egg to implant in the uterus and you can't get a positive until then. It may be that she hasn't had a chance to make enough HCG to be detected.