Track the changes of perimenopause
In the years before menopause, periods can come closer together, further apart, heavier or lighter, and symptoms shift too. LunWise turns those changes into a clear record, so you and your clinician can see what's actually happening.
How LunWise helps
- Perimenopause mode follows your latest cycles closely and keeps predictions honest as they change.
- A cycle-length chart shows trends that are hard to notice month to month.
- Flags patterns worth a check-up, like long gaps, very long periods or heavy bleeding.
- Log sleep, mood, energy and other symptoms and see how they line up with your cycle.
- A doctor-ready report summarising your cycles, symptoms and patterns.
What happens to your cycle in perimenopause
Perimenopause is the transition before menopause, when estrogen and progesterone begin to fluctuate. It can start several years before menopause. Menopause itself is reached after 12 consecutive months without a period, and the average age is 51, usually between 45 and 55.
Changes in cycle length are often one of the first signs. Cycles may shorten, lengthen or skip, and bleeding may be heavier or lighter than before. Because these changes are gradual and uneven, a chart of your own cycles is often more useful than memory.
Why tracking helps at appointments
Clinicians often ask when your periods started changing, how long cycles are now and how heavy bleeding is. LunWise keeps that history and puts it on one page. It also flags patterns that are worth raising, such as bleeding for more than 8 days or soaking through protection every hour.
What to log
- Every period, including light or short ones
- Flow on heavy days
- Sleep, mood, energy and other symptoms
- Any bleeding between periods
Questions and answers
How do I know if I'm in perimenopause?
Changes in your cycle, like periods coming closer together or further apart, along with symptoms such as hot flashes or poor sleep, are common signs. Only a clinician can tell you for sure, and a record of your cycles helps that conversation.
Can LunWise predict periods in perimenopause?
It predicts from your most recent cycles and shows a confidence level and date range. When cycles become very irregular, LunWise widens the range instead of giving a falsely precise date.
When is bleeding a reason to see a doctor?
Very heavy bleeding, bleeding longer than 8 days, bleeding between periods, and any bleeding after 12 months without a period are all reasons to see a clinician.
Sources
- Eunice Kennedy Shriver National Institute of Child Health and Human Development. About Menopause.
- Munro MG, Critchley HOD, Fraser IS. The two FIGO systems for normal and abnormal uterine bleeding symptoms (2018 revisions). Int J Gynaecol Obstet.
- American College of Obstetricians and Gynecologists. Heavy Menstrual Bleeding (patient FAQ).
Last updated October 11, 2026. This page is for general information and isn't medical advice.