Pregnant and exposed to the stomach flu

So, on Sunday, over at my parents' house my nephew threw up. I stayed away from him. My husband held my other nephew while my sister cleaned the mess. My sister was certain it wasn't the "flu" because my nephew was acting fine afterwards. It was as though he just gagged or something...so we stuck around. Despite this, my husband and I did a lot of hand washing that night. Later, we got a call from my sister saying my other nephew threw up a couple of hours later. Great. It was the flu.

The next day, both my sister and brother in law got it...although they said it wasn't bad. He just had diarrhea...she threw up once and had diarrhea, but didn't feel that bad.

Last night, after dinner, my husband got horribly ill with diarrhea. Being pregnant, I left his side (killed me), and locked myself in our room. He had a bathroom to himself and the living room. He threw up big time four times throughout the night, and had diarrhea so many times he lost count. He still has a touch of diarrhea this morning.

Clearly, I avoided the exposure from my nephews...but my husband. I drank from his water at dinner -- one hour before he got sick! I feel like I'm just waiting for it to hit.

Anyway, I'm washing my hands every five minutes, I'm disinfecting everything, I'm on my way to get an immunity bumping Jamba Juice. I know there's "nothing" you can do once infected, but anyone know of any old wives' tales...anything?

Also, this seems to be a 24 hour bug...I assume that, if I get it (heaven forbid), and if I stay hydrated, it should do no harm to the 14 week old fetus. Is this correct? Is there a point where I should call my doctor?

Finally, does anyone know how long my husband is contagious. I thought he'd be OK by now, but, with the touch if diarrhea he's still having, I don't know.

Thanks...and wish me luck.

Oh geez. My cat just threw up. Can you believe it?