Since your only 13, you might not have strated your period. I didn't get mine till 2 weeks after my 16th birthday...but for over a year before I got my period I had the discharge. its normal. I just wore really really thin pantiliners. You may start your period anytime or in a year and a half all depends how far along you are in puberty. Hope I helped. Feel free to Fun Mail Me:D!
its discharge..totally normal as long as its not a color like green or anything like thatI have this white gooey stuff in my vagina!