Can I be in perimenopause with regular periods?

From age 45, NICE pairs recent hot flushes or night sweats with any cycle change. A monthly rhythm can still have shifted in flow, timing or heaviness. The form asks if periods are continuing and if flushes are recent. It does not grade how clockwork they look.

Am I postmenopausal if I still have symptoms?

The stage name follows the periods. Flushes, night sweats and broken sleep can keep going after the calendar has moved on.

Spotting is bleeding. A yes on bleeding after a long gap clears a postmenopause result and puts a GP prompt on the screen. The months you typed go back to zero.

What if I am on the pill?

A pill, patch, ring or implant can take bleeding off the calendar, and so can HRT that changes periods. You get a result that will not date menopause. The appointment is the next step.

Perimenopause

Perimenopause or menopause?

See whether your age and your last period point to perimenopause, the menopause point, or postmenopause.

By Ines Kovac. Published 18 October 2026. 8 minute read.

Summarize with:

A black alarm clock on a stack of books on a wooden bedside table, next to a mustard headboard and grey bedding.

Hot flushes can start while periods are still coming, and that pattern is perimenopause. Symptoms can also continue after a full year with no period, which is postmenopause.

The checker uses your age and the months since your last period, following staging rules from the NHS and from NICE guideline NG23. This is an educational estimate, not a diagnosis. A GP still decides, and that matters most under 45 and if bleeding returns after a long gap.

Use the checker. If you are booking an appointment, print the menopause symptom checklist for your GP and take the sheet in.

Use the stage checker

Check your stage from your age and your last period

Enter your age, how many months have passed since the last vaginal bleeding, whether periods are still happening, whether hormonal contraception or HRT is changing your cycle, and whether hot flushes or night sweats have shown up recently. The result names a stage and the rule behind it. Nothing you enter is sent or stored.

If you have had a hysterectomy and there is no period date to count from, this form cannot calculate a stage. A GP can use the operation notes and your symptoms.

Age 48, with bleeding 8 months ago

Take these answers: age 48, last bleeding 8 months ago, no hormonal contraception, and hot flushes that still appear. The result is perimenopause. The age is 45 or over, the gap is still short of the menopause point, and the flushes are recent.

Your age Whole years, from 16 to 60. Months since your last period Use 0 if you bled in the last month. If the gap is longer than 120 months, enter 120.

Are you still having periods? Yes No

Are you using hormonal contraception, or HRT that alters or stops periods?

Pill, patch, ring, implant, or HRT that changes bleeding.

Yes No

Have you had hot flushes or night sweats recently? Yes No

After a gap of 12 months or more with no period, has any vaginal bleeding happened? Yes No

The button stays off until age, months and every answer are filled in.

What perimenopause, menopause and postmenopause mean

The NHS describes perimenopause as the time when periods become irregular, and menopause as the time when they stop altogether. It defines menopause as 12 months without a period when you are not using hormonal contraception (NHS: what are menopause and perimenopause). After that line, the NHS symptoms page calls the stage postmenopause (NHS: menopause and perimenopause symptoms).

From age 45, NICE NG23 applies these rules without laboratory tests to otherwise healthy women, trans men and non-binary people registered female at birth, when they have menopause-associated symptoms. NICE identifies perimenopause when vasomotor symptoms, meaning hot flushes and night sweats, have recently started and the menstrual cycle has changed. It identifies menopause when there has been no period for at least 12 months and hormonal contraception is not in use (NICE NG23).

NICE quality statement 143 says people aged 45 or over are diagnosed with perimenopause or menopause from symptoms alone, without a confirmatory laboratory test.

Premenopause and perimenopause

The NHS pages linked above say perimenopause and menopause. They do not use the word premenopause.

A NICE evidence chapter uses premenopause for the years of relatively normal menstrual cycles before the transition. It uses perimenopause for the interval of irregular cycles before menopause (NICE evidence chapter, NCBI Bookshelf). In everyday searches, premenopause often means the same stage as perimenopause. The NHS wording is the one to take to a GP.

How you know when menopause is over

NHS England describes perimenopause as the lead-up, when cycles may be irregular, until 12 months after the last period. It describes menopause as periods that have stopped for 12 consecutive months, and postmenopause as the time after that.

The calendar point can pass while flushes and sleep changes are still with you. That is already in the NHS symptoms wording above.

Contact a GP if you have not had a period for 12 months or more and you have any vaginal bleeding (NHS: menopause and perimenopause symptoms). In this checker, a yes on that question sets the month count back to zero and shows the same prompt.

When contraception or HRT hides the date

The NHS says hormonal contraception can make it harder to tell if you have reached perimenopause or menopause, because it can alter or stop periods.

NICE NG23 warns that menopause can be difficult to identify in people using hormonal treatments, for example for heavy menstrual bleeding. The same chapter rules out an FSH blood test for identifying menopause in people on combined oestrogen and progestogen contraception, or on high-dose progestogen.

If you answer yes to that question, the checker stops. It will not offer a menopause date. A GP can look at the method you use. If you already take HRT, the extra cases of breast cancer, clots and stroke in a group of 1,000 women are set out in HRT risks in plain numbers.

Under 45, see a GP

The route that skips blood tests starts at 45. Under that age, this page is a signpost.

NICE asks clinicians to consider a serum FSH test to confirm menopause only in two groups. One is people aged 40 to 45 with menopause-associated symptoms, including a change in their menstrual cycle. The other is people under 40 in whom menopause is suspected (NICE NG23 recommendations).

On the form, ages 40 to 44 still get a calendar reading, with a note that an FSH test may be part of confirming menopause. From 45, the result uses the symptom rules.

Under 40, the result asks for a GP assessment rather than a stage name. The NICE clinical knowledge summary on premature ovarian insufficiency advises against a diagnosis from one blood test. It describes an FSH result above the reference range on two samples taken 4 to 6 weeks apart, alongside symptoms that include no periods or infrequent periods.

Treatment is a decision for the GP who knows your history. The perimenopause guides cover how this stage is recognised while periods continue.

My take

I would start from the last bleed I remember, and I would judge the result by two limits. If a pill, patch, ring, implant or HRT is changing the bleeding, or if any bleeding came back after a year without a period, I would book a GP appointment and take the symptom checklist. I would leave the stage name to that appointment.

Sources

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