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Cycle Health8 min read · May 2026
Short Luteal Phase: Causes and How to Lengthen It
A luteal phase under 10 days can make conception difficult.
⚕ Medical Disclaimer: This article is for informational purposes only. Always consult a qualified healthcare provider.
The luteal phase is the time between ovulation and your next period, normally 12 to 14 days.
A phase shorter than 10 days may not allow enough time for implantation, often caused by low progesterone, high prolactin, thyroid issues, PCOS, or excessive exercise.
Natural approaches include reducing high-intensity training, managing stress, and ensuring adequate intake of vitamin B6 and healthy fats.
A doctor can confirm the cause with a day-21 progesterone blood test.
Frequently Asked Questions
How do I know if my luteal phase is short?
Track your BBT. If the post-ovulation temperature rise lasts fewer than 10 days before your period starts, it may indicate a short luteal phase.
🛒 Vitex (Chasteberry) for luteal phase support
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