When Will I Have My Period? Hi BeingGirl Experts, I am 13 years old, and have been having discharge for at least three years now. It kind of comes in cycles, but not really. My mom had her period when she was 12, so I should be expecting it anytime now. I have totally developed in all the other ways, hair, and shapes, and all that jazz, but the period is not there. I am a gymnast, and train often. At the very least, eight hours a week. Could that be part of the delay??? Also, will my discharge go away once my period comes, because it is a pain—I have to wear panty shields, otherwise, it starts to smell. Is there anything I can do to stop it? Anne --- Dear Anne, Maturation is genetically determined, although your environment plays a role. Understand you have your very own internal timetable. Even though the average age of menstruation is 12½, some girls do not mature until they are 14 or 15 and this is NORMAL. During the year or two before your first period (menstruation) starts, physical changes begin to happen. Most girls will start their first period 2–2 ½ years after breast development starts. (Remember this is a range, you could start before or after this.) You will know you are closer when you begin to notice a thick, white mucous discharge. This comes from the vagina, the same opening menstrual flow will leave your body through. http://www.beinggirl.com/my-period/first-period is a page with links to articles you may helpful as you anticipate your first period. You will have a vaginal discharge for many years. Perspiration or secreted or excreted fluid may create an odor when in contact with bacteria on your skin. Use antibacterial wipes or wash this area with soap and water if you detect an odor. Some odors are related to vaginal infections. If you have a discolored discharge or any itching or burning associated with this odor, see your doctor/healthcare provider. Hope this is helpful, Your BeingGirl Experts Wondering when will I have my period? Get answers from the experts at BeingGirl.com.