Stomach Virus 17 weeks

My toddler gave me an awful stomach virus and I can’t hold anything down, including water. TMI but I have awful diarrhea too and I’m running to the bathroom every 10 minutes to vomit or poop. I’m worried I’m getting dehydrated. It’s only a few hours so far. Any advice on how to avoid dehydration as I know that’s really dangerous in pregnancy? My son was like this for about 24 hours but he didn’t have the diarrhea part.

Also, just want to say that this sucks a whole lot.