Fever at 9+5.. when to go in

I’ve tried calling my doctors on call service multiple times and have been on hold for 45+ minutes. I’m running a low grade fever at 99.9, I think I have a head cold but I guess I’m not sure with covid times going on. I know fever and early pregnancy can be bad, I’m 9+5. At what point do i consider the fever too high and go in? I’m going to keep trying the on call service but thought I’d post here too in the meantime.