6wk6d and have a sore throat

Felt fine this morning, went to the gym. Sore throat by the time I got home. Tried salt water gargle and hot beverages. Then BAM! A few hours later and I've got a really bad sore throat, fever, chills, headache, fatigue (on top of the nausea I've had for the past week). Called the ob, waiting to hear back from the on call doc. I'm nervous. I know an increased body temp is dangerous. Any advice?