Hi There,
teenage menstrual cycles are all over the place in terms of length of cycles, quality of bleeding, and missing some periods.
I agree with jenner about making an appointment for a check up. I would also suggest that if you are using tampons, double check that you did not forget to remove a tampon. I have been impressed with how easy it is to do that.
A retained tampon can cause lots of vaginal discharge.
take care
Please make an appointment to see your doctor if you haven't done so.