High Fever - 14dpo

Sw
Hi Ladies
I am 14dpo and have been having hot flashes, shivering & extreme fatigue for over a week. Today woke up with a fever of 101. I am crampy and waiting for my af to arrive. Do you think high fever can delay my period ? 
I don't know why I have fever as I don't have a cold or sore throat or anything....
Any ideas ? Tips ?