First time pregnant, feeling sick... Help!!!

Shanice • Baby dust to all!!

For the past few days, I’ve been having this mucus drainage down the back of my throat that cause me to want to spit it up. The mucus is not yellow. It’s clear, but I feel it’s irritating my throat. I’m not running a fever, nor am I coughing or sneezing. Just having stuffy nose and mucus drainage. Should I be worried? I’m taking vitamin c and folic acid. I have not gone to my first doctor’s appointment. It’s Monday. Should I go to the ER?