Is this normal?
Why are my periods getting closer together?
Last reviewed: 2026-07-10 · Reviewed by Kindr Health (NPI 1609792902)
Yes — cycles shortening (from 28 to 24 or fewer days) is often the first sign of perimenopause. As ovulation becomes less regular, the follicular phase shortens and periods arrive sooner. It's a documented, expected early-transition pattern. But some bleeding patterns still need a provider's eyes.
Why it happens
- The follicular phase shortens as ovarian follicles respond faster to rising FSH.
- Anovulatory cycles become more common, disrupting the usual 28-day rhythm.
- Estrogen can surge without balancing progesterone, changing timing and flow.
When it's not just menopause — see a provider
- Bleeding between periods or after intercourse.
- Cycles consistently shorter than 21 days.
- Flow so heavy you soak a pad/tampon every hour for hours.
- Any bleeding after a full 12 months without a period.
If you're in crisis, call or text 988 in the U.S., or your local emergency number.
Frequently asked
How short is too short?
Cycles consistently under 21 days deserve a provider visit — even in perimenopause.
Will they space out again?
Often yes — many women see cycles then lengthen and skip before periods stop.
Can I still get pregnant?
Yes. Fertility declines but isn't zero until 12 consecutive months without a period.
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Dot is a midlife health platform providing educational wellness information, community and supportive conversation. Dot is not a medical provider and does not offer medical advice, diagnosis, or treatment. If you have a medical concern, consult a licensed healthcare professional. If you are in crisis, call or text 988.