Drink some vitamin c tablets to boost your immune system. Also some honey and limon tea does wonders! Good luck and hope you get well soon
I agree with Lizzie, hot tea with honey and lemon works wonders. Gargling with salt water may help as well if you feel that your throat is swollen. Pretty sure it is not pregnancy related, but one of those things that is no fun to have. If you start running fever then it may be an infection and let your ob or pcp know.