Stomach virus dehydration

I woke up at 1pm today with vomiting diarrhea stomach cramps and chills. I’ll be 24 weeks tomorrow. Since then I’ve been unable to keep anything down, no water or Gatorade anything I drink I throw back up almost immediately. So technically I haven’t had any fluids since 830am right before I fell asleep (I work night shift). I’m still having diarrhea and stomach cramps too. Throughout the day I’ve noticed small leg cramps too. When should I go in for IV fluids? It’s almost 9pm now. My dr doesn’t have a nurse line I can call. All urgent care centers in my area are closed now for the night