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Short Menstrual Cycles May Signal Early Ovarian Ageing – Fertility Plus
May 6, 2026, 01:30

Short Menstrual Cycles May Signal Early Ovarian Ageing – Fertility Plus

Fertility Plus shared a post on LinkedIn:

“Do you have short cycles… 21–24 days?

Have you checked your AMH and antral follicle count?

Your cycle is not random; it reflects what’s happening in your ovaries. Think of it like a running track:

  • A 28-day cycle = one full lap
  • A 21-day cycle = a shorter lap

Shorter lap → more laps in a year.

And here’s the key: Each cycle uses a group of follicles. So, more cycles → more follicle use → faster decline in ovarian reserve.

As this happens:

  • AMH falls
  • FSH rises earlier
  • Ovulation happens sooner
  • The cycle shortens further

It becomes a loop.

Clinically, short cycles are linked to:

  • Lower AMH and AFC
  • Fewer eggs in IVF
  •  Reduced pregnancy rates
  • Earlier menopause

Even in your early 30s.

Takeaway: Your cycle length is more than a number. It may be an early signal of ovarian ageing. If your cycles are shortening, it’s worth checking.”

Fertility Plus

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21-day cycle 28-day cycle AMH antral follicle count earlier menopause Fertility Fertility News Fertility Plus follicle FSH IVF Menopause ovarian reserve ovulation Reduced pregnancy rates reproductive health Reproductive Medicine
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