when does a teens period become consistent
Don't worry if your early periods have longer cycles or don't follow a schedule. This irregularity is normal for at least the first 2 years. Your periods should become more regular within two years after you start menstruating. Some teens have a 28-day cycle; some have a 24-day cycle; others have a 30- to 34-day cycle.All of these are normal. For young teens, cycles can range from 21 to 45 days. For adults, it can be 21-35 days.If your period is much shorter or longer, or if your period does not become regular after two years, see your primary health care provider.ll of these are normal. For young teens, cycles can range from 21 to 45 days. For adults, it can be 21-35 days. If your period is much shorter or longer, or if your period does not become regular after two years, see your primary health care provider.