Flu in pregnancy

I’m 19 weeks and 99% sure I have the flu. I’ve done 3 Covid tests and they were negative but I have classic flu symptoms (chills, fever, fatigue, body aches, sore throat and headache).

I’ve hardly been able to move all afternoon I feel so rough 🙁

I have my anatomy scan next week and for some reason I thought flu vaccines were October onwards not more august/September so I’m late for it and thought I’d be early asking for it at my 20 week scan at the same time I get my whooping cough vaccine.

Do I need to do anything or just drink/rest and ride it out? Not sure if i should go drs for this because I’m pregnancy I wouldn’t usually?