A period can be late for many reasons besides pregnancy. Common causes include stress, weight changes (either gain or loss), increased exercise, hormonal imbalances such as thyroid issues or polycystic ovary syndrome (PCOS), use of birth control, perimenopause or approaching menopause, and certain chronic illnesses or medications. Additionally, conditions like primary ovarian insufficiency, breastfeeding, and lifestyle changes can also delay menstruation.
Key Reasons for Late Periods
- Stress: Chronic stress affects hormone regulation in the brain, which can disrupt the menstrual cycle.
- Weight changes: Significant weight gain or loss can interfere with the hormones controlling periods.
- Exercise: Excessive physical activity can delay or stop periods.
- Hormonal disorders: PCOS, thyroid imbalances, and other endocrine issues can cause irregular or missed periods.
- Reproductive phases: Perimenopause and early ovarian insufficiency lead to irregular cycles as hormone levels fluctuate.
- Medications and birth control: Some medications, including contraceptives, affect menstrual timing.
- Other medical conditions: Diabetes, chronic diseases, and infections may impact menstruation.
- Breastfeeding: The hormone prolactin can suppress periods during breastfeeding.
If periods are consistently late or accompanied by other symptoms, consulting a healthcare provider is advised to diagnose and address underlying causes.