I don't know of one specifically. But when I was pg with DS I had horrible morning sickness. My midwife suggested finding a soothing scent. I went to the natural food store and smelled away (when I was feeling ok) I ended up finding a natural honey scented spray that totally did it for me. Now that I am pg again, I pulled it back out and it's working like a charm. Don't know if that answered your questions <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/redface.gif" style="border:0px solid;" title="Embarrassment"> Good luck...hope the sickies go away soon.
Aveda makes a ton of different aromatherapy products that can be helpful. If there's a shop or salon/spa in your area, I definitely suggest checking them out. They've got chakra sprays, custom perfumes, and just a bunch of options that can be really soothing.