I have taken an early pregnancy test that came up negative, but I have felt sick all week with that…

I have taken an early pregnancy test that came up negative, but I have felt sick all week with that feels like a hangover. My period isn't supposed to start until Wednesday, but I'm so anxious. I just want to know if I am pregnant or not. So far, I am not experiencing any symptoms I usually have when I'm about to start my period, so fingers crossed that my period doesn't show, and a positive does!