I think I might be pregnant but I really would like to discuss my confusion with you guys and maybe you can help?

I’m 2 weeks late, I never go past 1 or 2 days

I threw up immediately after I ate, and now I’ve been getting nauseous after every meal

Dizziness

BUT! I took 2 pregnancy tests which came back negative, and took a urine test at the hospital which was also negative. I do not want to go back to the er for a blood test but I really want to know what’s going on.. please help