-Kellie in Las Vegas
Having experienced morning/all day sickness with all of my pregnancies, this is an excellent question.
I always try and reassure pregnant mamas that having some sort of nausea is a good sign of pregnancy. In my experience, it is rare to have morning sickness and miscarry. My mom told always told me that it is a sign that your body is adjusting to the pregnancy and the baby is growing. Scientifically, this is also proven. An interesting article on the subject can be found here: Morning Sickness Protects Mother and Child. That said, it can be a very miserable experience for some who experience severe nausea called Hyperemesis gravidarum- (see-Hyperemesis gravidarum - Wikipedia, the free encyclopedia), which is like riding on a bad roller coaster over and over and is unrelenting. This can be a scary and hard to cope with this type of nausea, Here are some things that can help mild to severe "pregnancy nausea":
Clary sage, fennel,geranium, ylang- ylang (pronounced e-long, e-long, thank you Jeanne Rose!), grapefruit and lavender.
-Young coconut water- I drank literally gallons of this during pregnancy