Am I possibly pregnant?

I’ve been having a lot of pregnancy symptoms like INTENSE fatigue, nausea, consistent headaches, dizziness and brief spotting. I’m still not due to start my period until 12/18/19(GAH!) but I took a test early this morning just to see what it said and it was negative. Would that be enough confirmation or is it still too early for the hCG to show up on a test?