flu at 4 month pregnant

Congrats on your pregnancy! Try to build up your immunity by taking more fruits and veggies, drinking plenty of warm water (to flush out the flu virus), and taking Vit C, D and K, all of which help to build your body's immunity. I had a bad flu 2 months back and that's what my Dr prescribed. Also, wear a mask to prevent the virus from spreading, and stay away from crowded places to minimize contact with people who might be sick. Hope this helps!