Er visit?

I'm 29 weeks and I have felt crappy all day. Note that I don't really ever have morning sickness with and of my pregnancies. I woke up this morning and three up once. Then went to work and felt nauseated all day. Baby is moving but not as much as usual. I ate a few little things today, a small bag of chips and some craisins. And drank a can of ginger ale and ate a cup of ice. That's it. I still feel very nauseated and have a sore throat. And just coughed up yellow orange mucus. I don't think it's a stomach virus because my stools are normal. Could I be dehydrated and should I make an er visit?