Perimenopause and Irregular Periods: What to Expect

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Pinkishe Foundation

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25/10/2026

Medically reviewed by

Dr. Shehla Jamal

Perimenopause and Irregular Periods: What to Expect

What is perimenopause?

Perimenopause is the time of change leading up to menopause. It usually starts in your 40s, though it can begin earlier. Your ovaries slowly make less oestrogen, and your hormone levels rise and fall unevenly. This stage can last from a few months to several years. It ends at menopause, which is confirmed once you have gone 12 months without a period.

One of the first changes most women notice is in their periods. Knowing what to expect makes this time less worrying. Here are the common changes, the other symptoms, what helps, and how to tell what is normal from what needs a doctor.

Common changes to your periods

1. Changes in cycle length

Your cycle may become shorter or longer than usual. It can also vary a lot from one month to the next.

2. Skipped periods

You may miss a month or two, and then your period comes back. This makes it hard to know when to expect it, so keep a pad in your bag. If you miss a period and there is any chance you are pregnant, take a pregnancy test.

3. Changes in flow

Some women have heavier periods. Others have lighter or patchy bleeding. Small clots can also become more common.

4. Spotting between periods

Light spotting between periods can happen because of changing hormones. But spotting can also have other causes, so do not ignore it. See the next section.

5. Longer periods

Periods may last longer than before. What was once a five-day period might stretch to six or seven days. This can change from cycle to cycle.

A woman in her forties notes dates in a small diary at a café table.

When bleeding needs a check

See a doctor if you bleed between periods or after sex, your period lasts more than seven days, you soak a pad every hour or two, or you pass clots larger than a coin. These are common in perimenopause, but they need to be checked.

Heavy bleeding month after month can also lead to anaemia, which leaves you tired, dizzy or breathless. Anaemia is treatable, so mention these feelings to your doctor.

It helps to note the dates and flow of each period, in a diary or with our period and ovulation calculator. Your doctor can then see the pattern.

Can you still get pregnant?

Yes. Even with irregular periods, you can still release an egg in some months. No day of your cycle is fully safe. If you do not want to become pregnant, use contraception until a doctor says you can stop, and talk to your doctor about which method suits you now.

Other symptoms of perimenopause

Hot flashes and night sweats

Many women have hot flashes and night sweats in perimenopause. These sudden waves of heat can be uncomfortable and can disturb your day and your sleep.

Mood changes

Changing hormones can affect your mood. You may feel irritable, anxious or low. This is real, and you do not have to manage it alone. Talk to someone you trust, and see a doctor if low mood or anxiety lasts more than two weeks.

If you ever feel hopeless or have thoughts of harming yourself, please talk to someone today. Call Tele-MANAS, the government's free mental health helpline, on 14416 or 1-800-891-4416, at any hour. In an emergency, call 112.

Sleep problems

Night sweats and hormone changes can make it hard to fall asleep or stay asleep.

Vaginal dryness

Lower oestrogen can make the vagina drier. This can cause discomfort in daily life and during sex. Water-based lubricants and vaginal moisturisers can help. If it does not get better, see your doctor.

Managing perimenopause

Eat well and drink water

Simple home food helps: dal, sabzi, whole grains, fruit, and protein such as paneer, eggs, chana or rajma. Get calcium from food first, such as dahi, milk, paneer, ragi, til and green leafy vegetables. Ask your doctor to test your vitamin D level before you take any supplement. Drink water steadily through the day.

Manage stress

Yoga, meditation and slow breathing can help with mood swings and stress.

Stay active

Regular movement, such as brisk walking, yoga or strength training, can improve mood and sleep.

Regular check-ups

See your doctor regularly in these years, and talk about any big change in your periods or how you feel. Ask which checks you need, such as blood pressure, blood sugar, thyroid and haemoglobin.

Hormone therapy

If symptoms are hard to live with, hormone therapy (HRT) can help. It is safe and effective for many women, but it is not right for everyone. Non-hormonal medicines are another option. Discuss the benefits and risks with a gynaecologist to decide what is right for you.

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When to see a doctor

  • Bleeding between periods or after sex.
  • A period that lasts more than 7 days.
  • Soaking a pad every hour or two, or passing clots bigger than a coin.
  • Periods that come closer than 21 days apart.
  • Feeling very tired, dizzy or breathless, which can be a sign of anaemia.
  • No period for 3 months when you are not pregnant, especially if you are under 45.
  • Any bleeding 12 months or more after your last period.
  • Hot flashes, poor sleep or low mood that get in the way of your work or daily life.

Have a question about perimenopause? Call our menstrual helpline on 85888 70999. It answers at any hour.

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FAQs

At what age does perimenopause start?

It usually starts in your 40s, but it can start earlier or later. The timing is different for every woman. If you have signs of menopause before 45, see a doctor.

How long does perimenopause last?

It can last from a few months to several years. It ends at menopause, once you have gone 12 months without a period.

Are irregular periods normal in perimenopause?

Yes, they are common. Your cycle may get shorter or longer, you may skip periods, and the flow may change. But bleeding between periods or after sex, periods longer than 7 days, or very heavy bleeding need a doctor's check.

Is there a test for perimenopause?

There is no single blood test that confirms it. A doctor usually goes by your age, your symptoms and your periods, and may test to rule out other causes such as thyroid problems or anaemia.

Can I manage perimenopause without medicine?

Many women manage with good food, regular movement, stress care and steady sleep. If symptoms are severe, talk to a gynaecologist about hormone therapy or non-hormonal medicines.

Do I still need contraception?

Yes. You can still get pregnant in perimenopause, even with irregular periods. Use contraception until a doctor says you can stop.

In short

Perimenopause is the time of change before menopause, and irregular periods are a normal part of it. Some bleeding, such as very heavy periods or bleeding between periods or after sex, still needs a doctor. Good food, movement, stress care and, for some women, hormone therapy can make this time easier.

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