OH another thing I just thought of.

Ever heard of seabands? They are for motionsickness but they have also been recommended for morning sickness as well. I used those and they helped... didn't make it stop completely but they helped.

http://www.morningsicknesshelp.com/seabands.html

They have no effects on the baby as it is just an accupressure band so they are totally safe to use.

Good luck