I didn't start start vomiting til 9 weeks either, I was really hoping I would be able to skip that part but I guess not, I am now at 12 weeks and I still vomit here and there mainly just smells or brushing my teeth, but thankfully its only every couple of days and not every day .... I will keep my fingers crossed that yours will go away soon :)
Its common to get it at different stages throughout pregnancy. Good luck!