Completely Confused

I have every pregnancy symptom in the book--bloating, gas, sore breasts, nausea, frequent urinating, heartburn, heightened smell, food adversions, etc and have for about a month and a half now, but I've had my period on time except this last time where it was 2 days early and only lasted 4 days which is very unusual for me. I'm very confused because every test I take says negative but I can't shake this 'feeling' I am