Oh no, I'm so sorry. The flu is so yucky feeling!
I'm personally in the camp that is unafraid of the flu. I've had it several times when I was younger. I'm not sure when it became this really big deal in this country. But that's just my belief.
If I were you, I would eat as much fresh garlic as you can get down, obviously fluids. I don't know how you feel about bone broths, but I do believe in the healing power of them. I would normally recommend a raw honey syrup mixture with some herbs, but I'm not totally sure of safety during pregnancy of the diff. herbs. Can you get in touch with a naturopath?
I would also try homeopathics, but you need to get them and start dosing up regularly now.
I hope it's not the flu, cuz that feels so terrible, but if it is, here's to quick healing!