What should I do?

Alright I've been having lots of headaches, been nauseous and today it got as bad as me having to repeatedly throw up. I had sex on the 24th of November and the 17th of November. I'm supposed to start my period on December tenth. I've also had very sensitive breasts been sleeping more than usual. I feel as though I could be pregnant but don't want to get my hopes up. I've also been having a creamy discharge. Right now I still feel very nauseous. And I know it's too early to tell and too early to take a test.