Premenstrual phase: definition and meaning
The premenstrual phase is the last part of the luteal phase, roughly the 5 to 7 days before a period starts. If no pregnancy has happened, the corpus luteum fades and progesterone and estrogen fall. This is when PMS and PMDD symptoms usually peak, including mood changes, bloating, breast tenderness and cravings, before easing once bleeding begins.
Where it sits in your cycle
After ovulation, the luteal phase usually lasts 12 to 14 days. Its first half has high and steady progesterone. The second half, the premenstrual phase, is where hormone levels drop. Doctors call it the late luteal phase.
What can happen in the premenstrual phase
- Mood: irritability, tearfulness, anxiety, feeling low or sensitive
- Body: bloating, breast tenderness, headaches, acne
- Appetite: cravings and hunger
- Sleep: lighter sleep or insomnia, sometimes night sweats
- Energy: tiredness, brain fog, less social energy
For most people this is mild PMS. For some it is PMDD, severe enough to disrupt daily life. Read more in PMS mood swings and luteal phase mood.
Planning around it
Once you know your premenstrual days, you can plan lighter schedules, earlier nights, comfort food you actually enjoy and a heads-up to people you trust. It doesn't make feelings less real; it makes them less of a surprise.
Frequently asked questions
How long is the premenstrual phase?
Usually about 5 to 7 days, though some people notice changes from ovulation, about two weeks before their period.
Is the premenstrual phase the same as the luteal phase?
It is the last part of it. The luteal phase starts at ovulation; the premenstrual phase is its final week.
Sources
This page is for information only and isn’t medical advice. If something worries you, please talk to a doctor.
Keep reading
Luteal phase: why feelings get louderWhat the luteal phase is, how long it lasts, why progesterone rises and falls, and the common symptoms: PMS, cravings, low energy and mood changes.Luteal phase: definition and meaningThe luteal phase is the part of your cycle from ovulation to your next period, usually 12 to 14 days. Hormones, mood, PMS and why it matters.
What is premenstrual syndrome (PMS)?PMS (premenstrual syndrome) is a group of physical and emotional symptoms in the days before a period that ease once it starts. Causes, symptoms and help.PMS mood swings: why they happen and what actually helpsTeary, snappy or anxious before your period? Why PMS mood swings happen in the luteal phase, what helps, and when it might be PMDD instead.
What phase of my cycle am I in? Free phase finderWhat phase of my cycle am I in? Enter your last period to see your cycle day, today's phase and how people often feel in it. Private and instant.