I've heard that Vitamin B helps and it seems to with me (along with eating what my body feels like rather than forcing things down). There is Vit B in your pregnancy multivitmin. I find that if I can down that with a bit of toast before I start moving around too much in the mornings, it calms the nausea down.

I hope this keeps working. If it causes me to have sick days (i've already had one) I'll have to explain, but I'd REALLY rather wait until I'm passt 12 weeks to tell them.