Mommies I need advice. I'm suppose to start my period tomorrow and i don't feel like I usually do…

Mommies I need advice. I'm suppose to start my period tomorrow and i don't feel like I usually do when I'm about to start. I usually cramp so bad that I can't move and I'm not cramping at all. Not even a little bit. I took a few pregnancy test and they all came back negative. One looked like there was a really faint line but I could've just wanted to see so bad that I made myself believe it was there. The hospital wouldn't give me a blood test. I'm not sure what to do?