i agree w/ his_sweetness...a musky, womanly smell is no problem....a fishy, yeasty, or unpleasant smell is no good. a mild to moderate amount of discharge is normal for women in child-bearing years.
Discharge is anything that secretes or flows from the vagina. You should be concerned when it has a yellow/green color to it. Being you say it is white, I wouldn't worry too much, it could just be that you're ovulating or the vagina's natural way of cleaning itself.