Your period is when you shed tissue, fluid and blood (menstrual discharge) from your uterus lining. It leaves through your vagina. For most girls and women it usually happens each month and lasts 3-7 days. It may come as a surprise when you get your first one-that's OK, it happens to all girls. It may be a good idea to carry a pad and a pair of clean panties in your bag just in case. Or don't be afraid to ask a friend help you-they've been through it themselves. The information being provided does not substitute for medical advice from your doctor or care giver.
Attribution: Straight Talk Foundation