am i pregnant

I am 5 days late for my period. I have had cramping like I am going to start, yet have not. I have taken numerous tests, all negative, and had a blood test taken at the Dr.'s ofc, and that cam back inconclusive, meaning they detected enough HcG hormone to say that the test eas not negative, but not enough to say that it was positive. I have been pregnant before and have felt the same way ( cramping, expecting to start). I am always regular, even since I have been off of the pill for 4 months. I really want to be pregnant and would like to know if I would est with a home pregnancy test tomorrow, would it possibly come back positive. Either way I am going to the Dr. tomorrow for test, so I will find out yest or no, but do you think that a HPT would come back positive?