During the first year of menstruation your period may be irregular. There will be times when you have a light period and a heavy period. You may also notice discharge when your period is over. Keep a liner on if you are planning to use a menstruation cup or tampon for the first time. Some females will genetically have a heavier period flow; consult with your parents at home to get family history. If you have a heavy constant flow for longer than 6 days straight consult your local clinic or physician.