My wife is 9 weeks pregnant right now.
She's been non-stop sick for the last month. Can't keep a lot down, and throws up 2 to 3 times a day. I know she usually throws up around 9am, and wakes up and does it around 3 am as well. She's lost 15lbs so far.
We went to the doctor, but they said to just try to keep stuff down, and they'll give her something if it gets really bad. I guess whatever it is they give you for it isn't too great for the baby.
I've been trying to cook foods with a bit higher calories, eg, I made enchiladas today. That way if she does throw up, atleast some of its better than nothing.