Flu or Pregnant 10dp

Becka • Student and stay at home wife. Currently TTC baby #1. Starting assisted conception in June.
Temp has been consistently above 99 which is odd for me the week AF is due. 
I had horrible nausea this morning. Throwing up at the smell of sunflower seeds. 
Sweating on and off even though it was only 50degreea outside and I was in shorts and a light top. 
Trying to hold off on testing till tomorrow morning. Husband is convinced I am pregnant. I am thinking flu but also don't want to get my hopes up...