Stomach bug at 33 weeks!

Help ladies! Anyone gotten the dreaded bug yet? My friends have been passing it around and now husband has caught it, he was up all night violently throwing up and I'm super paranoid about catching it. Anything I can do to prepare or alleviate some of the uncomfortable symptoms? I am super scared to go into early labor from getting sick and something like this with horrible stomach cramps is probably the thing to do it.. ahh!

Also - super irritated that our friends did not warn us that they were sick the entire night before we saw them. 😡