Well it depends went throughout that a whole year before I got my period now even some days before I get my period I get discharge it may be a warning to tell you you are going to be getting a period soon or in the near future.
White discharge for the most part is very normal and happens to a large number of women. It's the vagina cleaning itself out and can increase during certain times in a womens cycle. Some women will notice they have it frequently (I am one of them) and some rarely get it. If it ever concerns you, you can see a doctor and discuss your concerns with them.