Cycle
About irregular cycles
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The menstrual cycle is not always perfect. The brain and the ovaries are connected, and they are very sensitive to what is going on in your day to day.
Common causes of a late period
Ongoing stress, sudden changes to your sleep, travel; changes in weight or intense exercise; hormonal conditions such as PCOS, thyroid problems, high prolactin or perimenopause; and side effects of medication, among others.
These variations do not automatically mean something is wrong. They are your body giving you information. If the difference in days keeps repeating, or comes with other symptoms, we recommend booking an appointment with your doctor.
Related
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Sources
- NHS (2026). Irregular periods
- NHS (2026). Stopped or missed periods
- US Office on Women's Health (2025). Period problems
This information is educational and does not replace assessment by a medical professional. LoveLust is not a medical device and does not diagnose, treat, cure or prevent any medical condition.