A period is generally considered late if it does not start within five or more days after the expected start date, based on your usual cycle length. Menstrual cycles typically range from 21 to 35 days, and occasional delays are common due to factors like stress, weight changes, exercise, illness, travel, or lifestyle changes. Hormonal imbalances or health conditions such as polycystic ovary syndrome (PCOS) or thyroid issues can also cause late periods. If your period is more than seven days late, it is typically considered late enough to warrant a pregnancy test or a visit to a healthcare provider if pregnancy is not the cause. Some individuals may have irregular cycles and may notice variation month to month, but consistent delays beyond 35 days or missing multiple periods should be evaluated by a doctor. In summary:
- Late period: 5 or more days past expected start date.
- Typical cycle length: 21 to 35 days.
- Causes: Stress, weight, exercise, illness, hormones, medications, health conditions.
- When to be concerned: More than 7 days late or cycles exceeding 35 days regularly.
These guidelines can vary per individual, and tracking your cycles over months helps understand your personal pattern. If consistently late, missing, or accompanied by other symptoms, professional advice is recommended.
