The luteal phase is the stretch between ovulation and your next period, and Cleveland Clinic's luteal phase guide (medically reviewed November 2022) puts its typical length at 12 to 14 days. The symptoms people link to it are bloating, tender breasts, mood changes, breakouts and shifts in appetite, and Mayo Clinic (February 2022) says they generally disappear within four days after your period starts. Where the phase begins on your calendar depends on your cycle length, which a standard 28-day chart can't show you.
What is the luteal phase?
It is the second half of your menstrual cycle. According to Cleveland Clinic, it begins right after ovulation, when your ovary releases an egg, and it ends when your period starts. The follicle that released the egg turns into a structure called the corpus luteum, which makes progesterone along with some estrogen. Rising progesterone thickens the lining of your uterus and turns cervical mucus thick and paste-like.
If you don't get pregnant that cycle, the corpus luteum dissolves and hormone levels fall. Your uterus sheds its lining, and that is your period. Day one of the period is also day one of the next cycle, because the Office on Women's Health (updated January 2025) counts a cycle from the first day of one period to the first day of the next.
When does the luteal phase start?
It starts roughly two weeks before your next period, not on a fixed day of the cycle. Cleveland Clinic's luteal phase page places the start around day 15 of a 28-day cycle, which describes a textbook cycle. Few cycles are exactly that long, and the Office on Women's Health says a regular cycle can run anywhere from 24 to 38 days and can differ from month to month.
A 2019 analysis in npj Digital Medicine looked at 612,613 ovulatory cycles logged by users of the Natural Cycles app. Only 13% of those cycles were 28 days long, and most of the difference between short cycles and long ones came before ovulation, in the follicular phase, rather than after it. The averages by cycle length are below.
| Cycle length | Share of cycles | Days before ovulation (follicular phase) | Luteal phase |
|---|---|---|---|
| 21 to 24 days | 8% | 12.4 days | 11.0 days |
| 25 to 30 days | 65% | 15.2 days | 12.4 days |
| 31 to 35 days | 19% | 19.5 days | 12.9 days |
| 36 to 50 days | 7% | 26.8 days | 12.9 days |
Across cycle lengths from 21 to 50 days, the average luteal phase moved by less than two days, from 11.0 to 12.9. The average follicular phase more than doubled, from 12.4 to 26.8. Counting back from the day your next period starts will land you closer to your luteal phase than counting forward from day 15 will. On a 32-day cycle, day 15 is still well before ovulation.
Individual cycles vary more than averages do. The same study reported an average luteal phase of 12.4 days with a 95% interval of 7 to 17, and the Office on Women's Health says the gap between ovulation and the next period can be anywhere from 7 to 19 days. There are two caveats on the data. It comes from people who use a fertility app and take their temperature, so it isn't a random sample of everyone, and the app's maker funded the study, as its authors disclose.
Here is the same idea as a worked example. It assumes a 13-day luteal phase, which sits inside the 12 to 14 days Cleveland Clinic calls typical, and it counts ovulation as the last day before the luteal phase begins, the way the study does. It is an illustration, so swap in your own numbers if you track ovulation.
| Cycle length | Ovulation around | Luteal phase runs |
|---|---|---|
| 26 days | Day 13 | Days 14 to 26 |
| 28 days | Day 15 | Days 16 to 28 |
| 32 days | Day 19 | Days 20 to 32 |
How do you know you're in the luteal phase?
Not everyone notices anything, Cleveland Clinic points out, but a few things can give it away. The first is your resting temperature. Taken right after you wake up, it rises slightly after ovulation. Cleveland Clinic says the shift can be as small as 0.4°F (0.22°C), and the npj Digital Medicine analysis describes the higher level as lasting through the luteal phase.
The second is discharge, which is wet and slippery like egg white around ovulation and, according to Cleveland Clinic, turns thick, dry and paste-like in the luteal phase. Our vaginal discharge guide covers what the everyday variations look like. The third is the symptoms in the next section, if you get them.
To work out your own luteal phase length, mark the first day of each period on a calendar, as the Office on Women's Health suggests. Then count from the day after your estimated ovulation to the day before your next period starts, which is how the study defines it. If you are tracking with pregnancy in mind, our guide to tracking your cycle before pregnancy goes further.
Common luteal phase symptoms
Cleveland Clinic's PMS guide (updated January 2025) lists the most common signs. They fall into physical and emotional groups, and Mayo Clinic notes that most people have only a few of them.
| Physical | Emotional |
|---|---|
| Bloating or a gassy feeling | Irritability or lashing out |
| Pelvic pain | Mood swings |
| Fatigue | Feeling anxious or sad, or crying spells |
| Acne flare-ups | Brain fog or trouble concentrating |
| Breast soreness | Food cravings or appetite changes |
| Headaches | Trouble sleeping |
| Diarrhea or constipation | Changes in sex drive |
Timing varies. Cleveland Clinic says most people notice symptoms one to two weeks before their period, though it can be two weeks or two days, and Mayo Clinic says they generally go within four days after the period begins.
Estimates of how common they are differ. About 50% of people who menstruate report at least one symptom, and about 20% of those have symptoms severe enough to disrupt their life, according to Cleveland Clinic, while Mayo Clinic says as many as 3 in 4 have had some form of premenstrual syndrome. The figures come from different sources, so treat them as a range.
Is the luteal phase the same as PMS?
No. The luteal phase is a stage of your cycle, and PMS is a pattern of symptoms some people have during it. To diagnose PMS, Cleveland Clinic says symptoms must occur the week before your period, end within a few days of it starting and recur for at least three cycles in a row. Premenstrual dysphoric disorder (PMDD) is a severe and potentially debilitating form of PMS with much more intense mood symptoms, and Cleveland Clinic puts it at about 3% of people who menstruate.
Nobody knows exactly why some people get PMS. Mayo Clinic lists cyclic hormone changes and shifts in serotonin, a brain chemical linked to mood, as possible contributors.
What can help with luteal phase symptoms?
Cleveland Clinic's PMS guide lists these everyday habits:
- Moderate exercise such as walking, running or swimming for 30 minutes a day, which it says can relieve stress and lift your mood.
- Fewer salty, fatty and sugary foods, and less caffeine and alcohol, in the two weeks before your period, with more fruit, vegetables and whole grains.
- At least eight hours of sleep, with the same bedtime and wake-up time each day.
- Yoga, meditation or breathing exercises.
- Avoiding smoking, which it says may worsen PMS symptoms.
The same page says over-the-counter medicines can often ease symptoms, and that if nothing you try makes enough of a difference you should see a healthcare professional. Ask a pharmacist or healthcare professional before starting any medicine or supplement. It also suggests noting when your symptoms start and stop each month, with pen and paper, a calendar or an app, so you can describe the pattern at an appointment.
Does the luteal phase change with age or life stage?
Less than the first half of the cycle does. In the npj Digital Medicine analysis, the average follicular phase shortened from 18.0 days in users aged 18 to 24 to 14.8 days in users aged 40 to 45, while the average luteal phase stayed between 12.2 and 12.5 days.
Whether you have a luteal phase in a given month depends on ovulation, since the phase begins right after it. The Office on Women's Health says you don't ovulate during pregnancy, you may or may not while breastfeeding, you may not ovulate every month during perimenopause, and you don't ovulate after menopause.
The last few days before your period
Tracking tells you roughly when to expect your next period. The Office on Women's Health says some people can predict the day and time it will start, while others can only predict it within a few days. Either way, the end of the luteal phase is a practical moment to check that you have whatever you use on hand.
If you are curious about a reusable option, the Bodyotics Menstrual Discs with String come as a pair, sizes S and L, each with a pull-off string, plus a silicone carry pouch you can boil. Our step-by-step guide to inserting a disc covers the first cycle.
When to talk to a healthcare professional
Asking is part of looking after a cycle that changes from month to month. These are the situations the sources above name:
- Your cycles are shorter than 24 days or longer than 38 days, or you are worried about your cycle (Office on Women's Health).
- Your symptoms affect your health or daily activities, or lifestyle changes haven't been enough (Mayo Clinic, Cleveland Clinic).
- You are trying to get pregnant and are concerned about your cycle length, or think you may not be ovulating (Cleveland Clinic).
- Your mood symptoms feel severe, which Cleveland Clinic says is more likely with PMDD than with PMS.
If low mood ever includes thoughts of harming yourself, treat it as an emergency and call 911 or go to the nearest emergency room, as the Office on Women's Health advises for any medical emergency.
Frequently asked questions
How long does the luteal phase last?
Cleveland Clinic gives 12 to 14 days as the typical length. In the 612,613-cycle npj Digital Medicine analysis the average was 12.4 days, and individual cycles ranged more widely than that.
When does the luteal phase start?
Right after ovulation, which for most people means about 12 to 14 days before the next period starts. Count back from your next period rather than forward from day 15.
Can you get pregnant during the luteal phase?
Cleveland Clinic says your most fertile days fall in the follicular phase, that you are most likely to get pregnant with sex in the five days before ovulation, and that once ovulation has passed you have only 12 to 24 hours for conception to occur. Ovulation timing varies from cycle to cycle, so this is not a guide to contraception.
How should you feel during the luteal phase?
Some people notice nothing at all. If you do notice changes, they tend to look like the symptoms in the table above, and they usually fade soon after your period starts.
Why do I feel more emotional before my period?
Mayo Clinic says premenstrual symptoms change with your hormones and that shifts in serotonin may play a part. Cleveland Clinic adds that some people are more sensitive to hormone changes than others. If the mood changes feel severe, see a healthcare professional.
This article is general information, not medical advice, diagnosis or treatment. For a persistent or worsening symptom, or any concern about your health, speak to a qualified healthcare professional.
Your luteal phase typically lasts about 12 to 14 days, it begins after ovulation, and it ends when your period starts, so counting back from that day beats counting forward from day 15. Bodyotics is built around the whole lifecycle of your vagina, from first periods to beyond menopause, and your cycle is part of that. A good next read is our guide to the four phases of the menstrual cycle, and the knowledge hub collects the rest. If you are building a period routine, our menstrual care range is one place to start.
The Bodyotics Editorial Team · Published November 10, 2026 · Last reviewed November 10, 2026
