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Cycle check

Am I in Perimenopause?

Medically reviewed by Dr. Sadaf Iftikhar, MBBS, FCPS
OB-GYN reviewedPublished Oct 3, 2026

See whether your cycle fits the perimenopause pattern. A few quick questions about your periods and your perimenopause symptoms, and you get a plain-language read of where things stand, plus a note for your doctor.

  • Free
  • Nothing stored
  • 3 minutes
Reads your periods the way an OB-GYN doesThe same cycle criteria (STRAW+10), not a symptom score.
Sorts out what’s bothering youWhich symptoms, how often, and how much they get in the way.
Gives you a detailed note for your doctorYour cycle, your perimenopause symptoms, and anything that needs a visit.

This quiz provides educational information only. Perimenopause is identified from your cycle history. Your answers aren’t sent to or stored by Menstrual Portal.

Perimenopause is the years before menopause, when your body slowly gets ready to stop having periods. Your ovaries (the two small organs that carry your eggs and make your hormones) start producing less estrogen, and the amount of estrogen keeps fluctuating instead of staying steady.1 That’s why a period can come early, come late, or even skip a month.

Perimenopause often starts in your 40s, though it can begin in your 30s. It lasts about four years on average, but it can be anywhere from two to eight years.214 Menopause is when you’ve gone 12 months in a row without a period.1 There isn’t a single test that can tell you “you’re in perimenopause.” Doctors look at your age, your symptoms, and how your periods have changed.4 That’s why tracking your symptoms helps so much.

On this page
  1. What is perimenopause?
  2. Why is tracking better than a blood test?
  3. What should you write down?
  4. How do you count your cycle length?
  5. What do the patterns mean?
  6. How long should you track?
  7. What should you bring to your appointment?
  8. Questions to ask your doctor
  9. When should you call your doctor right away?

What is perimenopause?

Perimenopause is the transition before menopause, when your hormones shift and your periods become less predictable. It often starts in your 40s, sometimes in your 30s, and lasts about four years on average. Menopause is when you’ve gone 12 months in a row without a period.143

Why is tracking better than a blood test?

Your hormone levels keep changing during perimenopause. A blood test from one week can show different results than the next. ACOG (the American College of Obstetricians and Gynecologists) says most people don’t need hormone tests. An OB-GYN can usually tell from your age, your symptoms, and how your periods have changed.4

Doctors also use a system called STRAW+10 (Stages of Reproductive Aging Workshop +10) to describe the stages of this change. It says your period pattern is the most important clue, and blood tests are only extra help.5 Blood tests can help in some cases, such as when your periods change before age 45.4 Your doctor may also check for other causes, like thyroid problems or pregnancy. A 2026 toolkit for doctors says they should ask about your cycle, sleep, mood, hot flashes, sex life, and bleeding. It also says routine hormone tests rarely help, because hormone levels swing too much.6

So your tracking notes are real evidence. Keeping them is one of the most useful things you can do.

What should you write down?

Keep it small. A quick note each day is enough.

What to write downHowWhy it matters
The first day of each periodMark the first day you bleedA cycle is the number of days from the first day of one period to the first day of the next.7 Every cycle count starts here.
How many days you bleedMark the last day tooMost periods last 8 days or less.8
How heavy it isNote how many pads or tampons you use, if you change at night, and any clotsSigns of heavy bleeding are soaking a pad or tampon every hour for more than two hours, using two pads at once, changing at night, or clots the size of a quarter or bigger.9
SpottingNote any bleeding between periods or after sexACOG says to tell your doctor about any change in bleeding, even though some changes are normal now.1
SymptomsCount hot flashes and night sweats (hot flashes that happen while you sleep). Also note sleep, mood, focus, vaginal dryness, bladder changes, and headachesDoctors are told to ask about sleep, mood, hot flashes, and sex life.6
How much each symptom got in your wayNote how much it got in your way: 0 = not really, 1 = a little, 2 = quite a bit, 3 = a great deal.It shows which symptoms to tackle first.

How do you count your cycle length?

Your cycle length is the number of days from the first day of one period to the first day of the next .7 All you need is a calendar. Follow these steps.

  • Circle the first day you bled in one period: That’s day 1.
  • Count each day up to the day before your next period starts: That total is your cycle length. Example: if one period starts March 3 and the next starts March 31, your cycle is 28 days. 
  • Do the same for your next cycle, and the one after that.
  • Subtract the shorter cycle from the longer one: Example: cycles of 28 and 36 days differ by 8 days. 

Then look at your numbers in two ways.

  • Back to back: Doctors look for two cycles in a row that differ by 7 days or more. If it happens again within 10 cycles, it counts as a pattern.5 
  • Shortest to longest: FIGO (the International Federation of Gynecology and Obstetrics, a global group of women’s health doctors) says a normal cycle is 24 to 38 days. It also says your shortest and longest cycles shouldn’t differ by more than 7 to 9 days.8 

A few days of change is normal. A big swing that keeps coming back is what to watch for. The next section explains what each pattern may mean.

What do the patterns mean?

What your notes showWhat it may meanWhat to do
Cycles getting a bit shorter, but still fairly regularA small early change. STRAW+10 describes subtle shortening as part of the late reproductive stage, before the transition proper starts5Keep tracking
Cycles that differ by 7 days or more, more than onceThe early stage of perimenopause5Keep tracking and tell your doctor at your next visit
A gap of 60 days or more with no periodThe late stage of perimenopause, which lasts 1 to 3 years on average5Take a pregnancy test if you could be pregnant. Tell your doctor. If you don’t want to get pregnant, ask about birth control
12 months in a row with no periodMenopause1Any bleeding after this needs a doctor visit10
A bleed or spotting about 2 weeks after your usual periodOvulation (when an ovary releases an egg) can get uneven in perimenopause, and cycles can get shorter.7 Bleeding between periods isn’t always caused by hormones, so it’s worth checkingWrite it down and book an appointment to have it checked.11
Longer or heavier periods than usualCould come from hormone changes, but abnormal bleeding can also be a sign of a problem1Bring your notes on flow to your doctor

Tracking your period has limits. If you use hormonal birth control or a hormonal IUD, the medicine controls your bleeding, so your period can’t show perimenopause. After a hysterectomy (surgery to remove the uterus) or an endometrial ablation (a procedure that thins the lining of the uterus), there’s no normal period to track. n these cases, your doctor may consider hormone tests,6 though levels swing, so results need careful reading.4 PMOS (formerly PCOS) often causes irregular or missed periods because ovulation doesn’t happen regularly.12 So irregular periods alone may not mean perimenopause. The STRAW+10 cycle rules don’t apply to it.5 If any of these fit you, track your symptoms instead and bring them to your doctor.

How long should you track?

There’s no set amount of time. Track for at least two or three cycles to see whether a swing repeats. Don’t wait for a perfect log if something worries you. The warning signs shouldn’t wait.

What should you bring to your appointment?

  • The date of day one of your periods, over the past several months
  • Your cycle lengths, and any swings of 7 days or more
  • Your mother’s or sister’s age at menopause, if you know it
  • Your notes on flow, including changing at night and big clots
  • Your top three symptoms, with the one that bothers you most first
  • A list of any medicines you take, including birth control

If you took the quiz on this page, its summary already lists your answers in the order a doctor reads them.

Questions to ask your doctor

  • Could this be perimenopause, or something else? 
  • Do I need any tests? Do I need birth control? 
  • Which symptoms should we treat first?

Your doctor will use your notes, your age, and your symptoms. Together, they help show whether it fits perimenopause or whether anything else needs to be checked. If you’re younger than 45 and your bleeding has changed, your doctor may order blood tests, especially if you’re under 40. These tests check whether you may have premature ovarian insufficiency (menopause before 40) or early menopause (40 to 44).4 

When should you call your doctor right away?

Some things can’t wait for a few months of notes.

  • Any bleeding after 12 months without a period, even light spotting: Most causes aren’t cancer, but about 9 out of 10 people with endometrial cancer (cancer of the lining of the uterus) have this kind of bleeding, so a doctor needs to check.15 Your doctor will usually arrange an ultrasound and may take a small sample of the uterine lining.10
  • Bleeding between periods, or after sex.
  • Periods that last longer than 8 days,8 or soaking through one or more pads or tampons every hour for more than two hours.9

Changes in your periods, or symptoms like hot flashes, can wait for your next visit. Bring your notes.

Seek emergency care if:

  • You are soaking through one or more pads or tampons every hour for more than two hours in a row11
  • You feel dizzy, short of breath, or have chest pain with heavy bleeding11
  • Mood changes can happen in perimenopause. If your mood feels very low, or you have thoughts of harming yourself: in the US, call or text 988 (the 988 Suicide & Crisis Lifeline) right away.13 Elsewhere, contact your local crisis line or emergency number.

Frequently asked questions

There’s no set time. A few cycles will show whether your swings keep happening. But don’t wait if you have warning signs or symptoms that are wearing you out.

The first day you bleed. If you’re not sure whether spotting counts, pick a rule, like “the first day I need a pad or tampon,” and stick with it.

Start now, then fill in what you can. Old calendars, photos, and app history often show period dates from the past few months.

No. A paper calendar works. An app can add reminders and charts, but read its privacy policy first.

You can, but the medicine controls your bleeding, so your period won’t show perimenopause. Track symptoms like hot flashes, sleep, and mood instead.

Yes, write down both. Symptoms can start before your periods change, and other causes, like thyroid problems, can look the same. Your notes help your doctor sort it out.

Usually not. Your doctor can often tell from your age, symptoms, and period changes.

Make one tick mark for each hot flash, and count day and night separately. Add a 0 to 3 score for how much they got in your way.

No. Menopause is confirmed only after 12 months in a row without a period, so you only know once it has happened. Tracking shows where you are in the change, not when it will end.

Yes. Send a screenshot, a photo of your calendar, or a short typed summary ahead of time.

Last medically reviewed on

References

Our commitment to accuracy is paramount; we use high-quality sources, including peer-reviewed studies, to support the facts in our articles. Learn more about our Editorial Process.

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  2. Cleveland Clinic. (2024, July 29). Perimenopause. my.clevelandclinic.org
  3. National Library of Medicine. (2025). Menopause. MedlinePlus Medical Encyclopedia. medlineplus.gov
  4. American College of Obstetricians and Gynecologists. (2025, September). Do I need to have testing of my hormone levels during perimenopause? acog.org
  5. Harlow, S. D., Gass, M., Hall, J. E., et al. (2012). Executive summary of the Stages of Reproductive Aging Workshop + 10: Addressing the unfinished agenda of staging reproductive aging. Menopause, 19(4), 387–395. doi.org
  6. Piasta, J., & Zewail, A. (2026). Hormonal options for perimenopause: A clinician toolkit. Obstetrics & Gynecology. Advance online publication. doi.org
  7. American College of Obstetricians and Gynecologists. (2024, February). Perimenopausal bleeding and bleeding after menopause. acog.org
  8. Munro, M. G., Critchley, H. O. D., Fraser, I. S., & FIGO Menstrual Disorders Committee. (2018). The two FIGO systems for normal and abnormal uterine bleeding symptoms and classification of causes of abnormal uterine bleeding in the reproductive years: 2018 revisions. International Journal of Gynecology & Obstetrics, 143(3), 393–408. doi.org
  9. American College of Obstetricians and Gynecologists. (2026, May). Heavy menstrual bleeding. acog.org
  10. American College of Obstetricians and Gynecologists. (2026). Updated guidance regarding the role of transvaginal ultrasonography in evaluating the endometrium of individuals with postmenopausal bleeding (Clinical Practice Update). Obstetrics & Gynecology, 148(1), e87–e91. doi.org
  11. American College of Obstetricians and Gynecologists. (2025, August). Abnormal uterine bleeding. acog.org
  12. Eunice Kennedy Shriver National Institute of Child Health and Human Development. (2026, July 2). About polycystic ovary syndrome (PCOS). nichd.nih.gov
  13. Substance Abuse and Mental Health Services Administration. (n.d.). 988 frequently asked questions. samhsa.gov
  14. Office on Women's Health. (2025). Menopause basics. womenshealth.gov
  15. Clarke MA, Long BJ, Del Mar Morillo A, Arbyn M, Bakkum-Gamez JN, Wentzensen N. (2018). Association of endometrial cancer risk with postmenopausal bleeding in women: A systematic review and meta-analysis. JAMA Internal Medicine, 178(9), 1210–1222. doi.org