9 weeks pregnant. Would it be ok to do zumba cardio/dance workout? ?

I would ask your doctor. You need to ask your doctor for approval for any type of exercise. While it may be safe to do it for the next couple of weeks, you will probably have to change to something less strenuous. Swimming and walking is great exercise while pregnant. I know how you feel though. I can't wait until I can hit the gym and go to the zumba club by my house!