How to manage a fever?

Cassity • Laila 05/15/17, Xander 4/10/18, and Grace 11/06/2019

I'm 28 weeks and I've been feeling sick all week long, but today it's the worst it's been. I don't have a thermometer so not sure if it's a fever or not but it definitely feels like it. I have a headache, cold chills, I've puked, no appetite, extreme fatigue, and a sore throat. I've put Vapor rub on my head for my headache, tried sleeping it off, and Tylenol isn't helping. What else can I do?