Do you still ovulate in perimenopause?
Often, but less and less predictably. In a study that tracked hormones in daily urine samples, cycles without ovulation became more common through perimenopause, and more than 60 percent of cycles in late perimenopause had none. But about a quarter of cycles longer than 60 days still included ovulation, and ovulation tended to happen later in the cycle. So the usual signs can come and go, and conception is still possible until your doctor confirms otherwise.
Key takeaways
- Cycles without ovulation become more common as perimenopause progresses.
- In late perimenopause, more than 60 percent of cycles had no ovulation in a daily hormone study.
- About a quarter of cycles longer than 60 days still included ovulation.
- Ovulation tended to happen later in the cycle in late perimenopause.
- Stage of the transition predicted ovulation better than age did.
- Conception remains possible in perimenopause, so keep contraception until your doctor says it is no longer needed.
- Cycle changes, not ovulation signs, are the main way perimenopause is recognized.
Ovulation is the part of the menstrual cycle most women stop thinking about after their thirties, until perimenopause makes the cycle unpredictable. The research on what happens to ovulation in these years is more precise than most women realize, and it has one practical message that matters a lot.
What happens to ovulation in perimenopause
A study followed women through the transition by collecting daily urine samples for six months a year, five years in a row, and measuring the hormones that show whether ovulation happened.1
| Finding | What it means | |
|---|---|---|
| Cycles without ovulation | Became more common through perimenopause | Signs of ovulation come and go |
| Late perimenopause | More than 60% of cycles had no ovulation | Most cycles, but not all |
| Cycles longer than 60 days | About a quarter still included ovulation | A long gap is not a guarantee |
| Timing | Ovulation happened later in the cycle | Harder to predict |
| Stage vs age | Stage of the transition predicted it better | Your cycle pattern matters more than your birthday |
Cycles without ovulation had higher FSH and LH and lower estrogen metabolites than cycles with ovulation.1 That fits the wider picture: in perimenopause, estrogen fluctuates and cycles become longer, shorter or skipped.4
The signs of ovulation in perimenopause
When ovulation does happen, the signs are the ones some women notice earlier in life:
- one-sided lower belly pain or twinges around mid-cycle
- cervical mucus that becomes clearer, wetter and stretchier for a few days
- breast tenderness in the second half of the cycle
In perimenopause, these may appear in some cycles and not in others, and later than you are used to, because many cycles have no ovulation and those that do tend to ovulate later.1 Cycle apps and ovulation tests become harder to read for the same reason.
Why contraception still matters
The researchers concluded that the risk of conception in women whose cycles are long enough to count as late perimenopause is far from negligible.1 Late perimenopause is defined by gaps of 60 days or more without a period,2 and a quarter of those long cycles still included ovulation. NICE advises clinicians to give contraception information to people with menopause symptoms.3 Keep using contraception until your doctor tells you it is no longer needed.
Ovulation signs are not how perimenopause is recognized
Doctors identify perimenopause mainly from age, symptoms and cycle changes, not from ovulation. NICE says that in women 45 and over, perimenopause can be identified from recently started hot flashes or sweats plus any change in the menstrual cycle.3 Is there a test for perimenopause and early perimenopause symptoms cover the signs that matter, and signs perimenopause is ending the last stage.
The change you cannot feel
While your cycle is changing, so is your body composition. In the SWAN study, lean mass began to fall and fat gain sped up during the transition.5 Strength training and protein at every meal are the two habits that address it.
Protein Buddy works out a daily protein target from a short quiz on your weight, age, activity and goal, and Home shows how many grams are left today as you log. Typing meals in by hand is free with no limit.
When to see a doctor
See a doctor about very heavy or prolonged bleeding, bleeding between periods or after sex, periods that stop before 45, or pain that is severe or new. If there is any chance you could have conceived, take a test and talk to your doctor.
More questions about Women over 40
What are the symptoms of ovulation during perimenopause?
The same signs some women notice earlier in life, such as one-sided lower belly pain in mid-cycle, clearer and stretchier cervical mucus, or breast tenderness afterwards. In perimenopause they may come in some cycles and not others, because many cycles have no ovulation at all.
Can you ovulate without a period in perimenopause?
Yes. Long gaps between periods are typical of late perimenopause, and in a daily hormone study about a quarter of cycles longer than 60 days still included ovulation. That is why a long gap does not mean you cannot conceive.
Why does ovulation stop in perimenopause?
As the ovaries run down, cycles increasingly happen without an egg being released. In the study on this page, these cycles had higher FSH and LH and lower estrogen metabolites than cycles with ovulation, and they became the majority in late perimenopause.
Do I need contraception in perimenopause?
Yes, until your doctor tells you it is no longer needed. The researchers who tracked ovulation concluded that the chance of conception in late perimenopause is far from negligible. NICE advises clinicians to give contraception information to people with menopause symptoms.
Can ovulation tests or apps tell me I am in perimenopause?
Not reliably. With ovulation happening in some cycles and not others, and later than usual, ovulation tests and cycle apps become harder to read. Doctors recognize perimenopause mainly from your age, cycle changes and symptoms.
References
- Progesterone and ovulation across stages of the transition to menopause
- Recommendations from a multi-study evaluation of proposed criteria for staging reproductive aging
- Menopause: identification and management (NG23)
- The Menopause Years
- Changes in body composition and weight during the menopause transition
