What can this be?

I had a fever of 101.3 - 102.5 since yesterday with no other symptoms except the fever, chills, a headache and my body feels weak. I took 2 Covid test and they came back negative both times. I can’t get into my doctor until Tuesday. What should I do to break the fever and start getting back to myself? What could this be

UPDATE- it’s not Covid. I’ve taken multiple test