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Menstrual Migraine Pattern Finder

Do your migraines follow your period? Log your last few cycle start dates and headache days — this tool maps possible timing associations and estimates windows to keep tracking in upcoming cycles.

Some people notice that headache or migraine days cluster around menstruation. Hormone changes may be one influence, but timing alone cannot establish the cause: sleep, stress, meals, medication use, and other factors may overlap.

Recording cycle starts and headache days together can reveal a possible repeated association to share with a clinician. This tool is a tracking aid, not a hormone test, diagnostic test, treatment plan, or contraceptive calendar.

How Cycle Timing May Relate to Migraine

These approximate windows can be useful labels when reviewing a symptom diary. They do not predict symptoms or show what caused a headache:

  • Days 1-5 (period): Record whether headache days repeatedly overlap with bleeding.
  • Days -2 to 0 (right before period): Include headache days just before bleeding so they are not missed in the pattern.
  • Estimated mid-cycle: Some people report headaches here, but period dates cannot confirm ovulation.
  • Days 17-28 (luteal phase): Hormone levels change across this phase. Some people report fewer attacks here, but no phase is a guaranteed symptom-free zone.

No cycle phase confirms that hormones caused a headache. Repeated records are useful context, especially when reviewed alongside other symptoms and exposures.

Find Your Pattern

Log your last 3+ period start dates and the days you had headaches. The tool analyzes whether your headaches cluster around menstruation, the estimated middle of the cycle, or both — and highlights approximate windows for continued tracking. It does not confirm ovulation, diagnose migraine, or predict an attack.

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When did your last 3+ periods start?

Tap the first day of each period on the calendar. More dates may provide more context, but this tool cannot reliably predict a cycle or migraine.

September 2026
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Four Timing Clusters This Tool Displays

1. Period-Window Cluster (Days 1-5)

Some recorded headache days overlap with bleeding. A clinician can assess whether the symptoms meet migraine criteria and whether the timing is medically meaningful.

2. Perimenstrual Pattern (Days -3 to 0)

Some recorded headache days fall shortly before bleeding. The tool labels the timing, but does not identify the mechanism.

3. Ovulatory Pattern (Mid-Cycle)

Some headache days fall near the estimated middle of the cycle. This is not proof of ovulation, hormone sensitivity, or a causal relationship.

4. Mixed Pattern (Period + Ovulation)

Some headache days fall in both displayed windows. Other triggers may also be involved, and a qualified clinician should interpret the pattern in context.

Treatment Conversations to Have With a Clinician

If a repeated timing pattern appears, bring the diary to a qualified clinician. The appropriate next step depends on diagnosis, health history, pregnancy plans, other medicines, and how often symptoms occur.

Medication Planning

A clinician may discuss acute or preventive options after assessing your symptoms. Do not start, stop, combine, or schedule prescription or over-the-counter medicine from a calendar estimate or from this page.

Magnesium Supplementation

Supplements can have side effects, interactions, and different safety considerations during pregnancy or with kidney and other health conditions. Ask a clinician or pharmacist whether a supplement and dose are appropriate for you.

Hormonal Approaches

Hormonal medicines can affect headache patterns differently from person to person. Decisions require individual assessment, especially with aura, pregnancy plans, cardiovascular risk, or other medical conditions. This tool is not contraceptive guidance.

Ongoing Prevention

For frequent or disabling symptoms, a clinician can determine whether ongoing prevention is appropriate. This tool cannot select a medicine or establish which treatment will work.

Stop guessing. Start tracking.

Find your migraine triggers with Claru

A tool result is only a starting point. Claru can help you organize episodes and review possible patterns to discuss with your care team.

Trigger Analysis

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7-Day Forecast

Probabilistic risk estimates, not medical predictions

Doctor Reports

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Why Tracking Both Your Cycle and Headaches Matters

A single snapshot (like this tool) gives you a starting hypothesis. But hormonal possible patterns need multiple cycles to evaluate. Your cycle length varies. Stress, sleep, and other triggers interact with hormones. A headache that looks menstrual in month one might be weather-related in month three.

Continuous tracking solves this. When you log both your cycle and your headaches every month, a repeated association may become easier to see. A diary gives your clinician useful context, but it does not confirm a cause or determine a prescription.

People Also Ask

What is a menstrual migraine?

A menstrual migraine is a migraine that occurs within a specific window around menstruation — clinically defined as day -2 to day +3 (2 days before to 3 days after your period starts). To qualify as "pure menstrual migraine," attacks must happen in this window in at least 2 out of 3 cycles with no migraines at other times. Most women have "menstrually-related migraine" — meaning they get migraines at their period and at other times too.

Can birth control help menstrual migraines?

Hormonal contraception may improve, worsen, or not change headaches. The safest option depends on the type of headache or migraine, aura symptoms, health history, medicines, and pregnancy plans. Do not start, stop, or change contraception from this tool; discuss it with a qualified clinician.

Do menstrual migraines get worse with age?

Headache patterns can improve, worsen, or remain unchanged during perimenopause and after menopause. Track meaningful changes and discuss new, severe, or changing headaches with a clinician.

Can people who do not menstruate use this tool?

This tool is designed only to compare headache dates with menstrual-cycle timing. It is not useful without period start dates. Anyone with recurrent, severe, or changing headaches should seek an appropriate clinical assessment.



Sources: MacGregor EA (2004) "Menstrual migraine," Current Opinion in Neurology. American Migraine Foundation. International Headache Society (ICHD-3 diagnostic criteria A1.1.1, A1.1.2). Vetvik KG et al. (2014) "Menstrual migraine in the general population," Cephalalgia. This content is for educational purposes and does not replace professional medical advice.