How do you know if your period is normal?
Last updated September 3, 2026.
A normal period comes every 21 to 35 days, lasts 2 to 7 days, and is heaviest in the first 2 days - with total blood loss of about 1 to 5 tablespoons, less than it looks. Color shifts (red on heavy days, pink or brown on light ones) are normal, and normal means normal for you: a consistent 33-day cycle is fine; a sudden pattern change is what deserves attention. Get checked for: soaking a pad or tampon hourly for hours, periods beyond 7 days, cycles suddenly erratic, bleeding between periods or after sex, pain painkillers do not touch, or 3 missed months with a negative pregnancy test. A few days of month-to-month variation is completely ordinary. Pymander is a free AI doctor, 24/7 by text, and can help you compare your pattern to the ranges.
What to do
- Know the ranges: 21 to 35 days between periods, 2 to 7 days of bleeding.
- Track your own baseline: a simple cycle log turns worry into pattern.
- Treat change, not variation, as the signal: sudden shifts matter more than off-average numbers.
- Get the outliers checked: hourly soaking, bleeding after sex, 3-month gaps.
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