well.....
I have 5 children (no ...er..yes..I am crazy
and I had HORRID morning, noon and night sickness (hospitalized many time for hyperemesis). When I was first pregnant my doc described it as your body is so "excited about expecting" it goes a bit overboard on the hgc hormone
which causes the morning sickness. The MS helps protect the pregnancy from toxic dangers (ie, by constantly purging I think
I found with each pregnancy, I tried to stay higher in protein as I could. Eat what would stay down. Each pregancy it was something different that would work. First pregancy was beef or chicken broth (salty seemed to help), second pregancy was V8 juice
...on and one.
Sprite and Compazine are a godsend!!!! Use them if you need it!
FYIW, my sister who has 3 children, had ZERO morning sickness (the BRAT!) as always, your mileage may vary!