Why you might see this term
Knowing roughly when ovulation occurred can help a clinician choose the timing of a progesterone test.
What to keep in mind
The luteal phase is not exactly 14 days for everyone. A single short cycle or isolated hormone reading does not diagnose a luteal problem.
Sources & further reading
Prepared by ProFertility · Updated 23 October 2026.
Educational information based on the linked sources. This explanation is not an individual diagnosis or a treatment recommendation. A term appearing here does not mean the test is necessary or included in a particular kit.
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