Luteal phase crying: what's behind it and what helps

The luteal phase starts after ovulation and ends with your period. Progesterone rises through most of it, then drops sharply in the final days before bleeding starts.

Two hormone shifts stand out:

• Progesterone breaks down into allopregnanolone, a neurosteroid that calms the brain through GABA receptors. In a controlled trial, a high dose of a drug that blocks this conversion eased mood symptoms in women with PMDD, which points to allopregnanolone's swing as part of the chemistry behind the crying.
• Cortisol plays a role too. A meta-analysis of 778 women found cortisol runs lower in the luteal phase than the follicular phase. A meta-analysis of 778 women found cortisol runs lower in the luteal phase than the follicular phase, which the authors think may track allopregnanolone's swing in the opposite direction. The study measured cortisol only, not allopregnanolone.

None of this makes the crying only chemical. Hormone shifts can lower your threshold for tears, but what you're crying about is still real.

Crying more before your period is one of the most common luteal phase symptoms, right along with tiredness and bloating. Most women notice it to some degree, even without a diagnosis.

Normal doesn't mean small. If a sad song, a work email or a passing comment from your partner has you in tears, that's your brain running on a different hormone backdrop this week, not a sign you're overreacting.

It also doesn't mean every tear is just hormones. A fight with your partner during the luteal phase can still be about something real between you. The timing explains why it landed harder. It doesn't explain it away.

The crying usually peaks in the late luteal phase, the final days before your period starts. That's when progesterone and allopregnanolone fall fastest, though real cycles vary in how long the luteal phase runs. The 4 phases of the menstrual cycle move through this drop and then reset once your period starts.

Once bleeding begins, most women notice the tears ease within a day or two. If yours keep going well into your period or start right after ovulation, that pattern, along with other luteal phase symptoms, is worth tracking rather than assuming it's typical.

Most luteal phase crying is PMS. It's common, it eases once your period starts, and it doesn't take over your whole month. PMDD is a specific diagnosis, with at least five symptoms, one of them a mood symptom, in the week before your period, confirmed by daily ratings over at least two cycles.

This pattern fits PMDD more than PMS if the crying comes with several other symptoms, shows up only in that last week and clears almost completely afterward. It doesn't mean you have PMDD. A clinician confirms that with two months of daily tracking, and mood across the whole cycle is worth a look too.

Crying doesn't need a reason that makes sense to pass. A few things can help while it's happening.

1. Let the tears come for a minute instead of fighting them. Fighting tears often makes crying last longer.
2. Breathe out for six counts, in for four, for about a minute. The longer exhale slows your heart rate.
3. Name what's happening, out loud or in a note: this is the luteal phase, and you're crying easily this week.
4. If someone's with you, tell them you don't need fixing, just a few minutes.
5. Step outside or splash cold water on your face. The change in temperature can shorten a crying spell.

If you want somewhere to put what you're feeling before you decide what to do with it, Niyora is a PMS and PMDD support app. Its Moon tool lets you write down what happened, see it from another angle and calm down before you answer anyone.

The only way to tell PMS crying from a pattern worth flagging is to track it daily, not from memory. Daily ratings are how researchers confirm PMDD in clinical trials, and they work the same way at home.

Try this for two cycles.

• Mark the day your period starts and ends.
• Each evening, rate your mood and whether you cried, on a simple 1 to 5 scale.
• Note what else was going on: sleep, a hard conversation, work stress.
• At the end of each cycle, mark which days fell in the luteal phase using a luteal phase calculator.

After two cycles, look at whether the crying clusters in the final week and eases within a few days of your period starting. That's useful information to bring to a GP or gynecologist, along with your notes.