Cycle × body · 7 min
Luteal phase — what to expect, day by day
The luteal phase is the second half of the cycle — from ovulation to the first day of menstruation. It usually lasts 11–14 days. Most of what people call "PMS" happens here: mood shifts, breast tenderness, bloating, sleep problems. The cause is hormonal — progesterone rises after ovulation, then both progesterone and estrogen drop sharply just before menstruation.
Physical symptoms
- Breast tenderness or swelling (from ~5–7 days post-ovulation).
- Bloating, water retention, weight fluctuation of 0.5–1.5 kg.
- Headaches, sometimes migraine-type (especially in the last 2–3 days).
- Lower-back and pelvic pain.
- Hormonal acne (jawline, chin).
- Appetite changes — usually toward sweet and salty foods.
- Constipation or loose stools in the final days.
- Greater sensitivity to physical pain.
Emotional symptoms
- Irritability, lower frustration threshold.
- Greater reactivity to conflict and criticism.
- Low mood, occasional tearfulness.
- Anxiety, unease, a sense that "something is wrong".
- Feeling overwhelmed by ordinary tasks.
- Less interest in social contact, withdrawal.
Cognitive symptoms
- Brain fog — trouble focusing and remembering.
- Slower decision-making.
- Trouble with multitasking.
- Worse sleep quality (shallower sleep, more waking).
- More fatigue despite the same hours of sleep.
Why this happens
Progesterone rises after ovulation and has a sedative, calming effect — hence the fatigue and need to withdraw. Its metabolite, allopregnanolone, acts on the same GABA receptors as anti-anxiety drugs. In some people, paradoxically, the same metabolite intensifies anxiety and irritability — one of the suspected mechanisms behind PMDD.
In the last 2–4 days before menstruation, both progesterone and estrogen drop sharply. This drop directly drives menstrual migraines, mood worsening, and food cravings. After the first days of menstruation, hormones stabilize at low levels and most symptoms ease.
When it's not "normal PMS"
PMS is uncomfortable but not destructive — you can still function. PMDD (premenstrual dysphoric disorder) follows the same cycle rhythm, but with mood symptoms intense enough to trigger "I can't take this" thoughts, relationship conflicts, inability to work. PMDD affects 3–8% of menstruating people and warrants a consultation.
If symptoms are also present after menstruation (in the follicular phase), it's not PMDD — it may be depression or an anxiety disorder amplified by the luteal phase (PME — premenstrual exacerbation). This distinction matters for treatment.
What to do
The first step is data. Two cycles of tracking show which symptoms are your pattern and which are noise. Without that, the conversation with a doctor rests on memory, which favors hard days. Cycle-tracking app data shortens the diagnostic process and lets you see for yourself whether interventions (supplements, sleep, medication) actually work.