haha I just asked the same question a few days ago, I'm in the same boat I'm 10 weeks and my nausea had died down and it worried me alot, From everyone told me, our hormones level out as the placenta takes over and the nausea and some of the other symptoms ease, its nothing to worry about, I havent even had my first prenatal appt yet and its not scheduled till two weeks from now, and i still called them asking, the nurse practitioner i spoke with told me it was normal because of what i've already said, your hormone levels evening off. If you want read what i had posted and see what everyone said,
http://www.medhelp.org/posts/Pregnancy-18-34/Nausea-going-away-at-10w/show/1263484?personal_page_id=1366683#post_5788720
always remember that if your concerned about ANYTHING you have every right to call your OB, its part of their job's to put our minds at ease =]