Hormones · Luteal phase peak
Men Women (soon)
Progesterone climbs sharply after ovulation. A mid-luteal value >10 ng/mL confirms ovulation. Below 3 ng/mL after day 21 of a 28-day cycle suggests anovulation.
Optimal range
10–25 (mid-luteal)ng/mL
Avg. cost (US)
$55
Test frequency
Annually for cycling women; every 3 months if optimizing fertility
When to measure
Day 21 of a 28-day cycle (7 days post-ovulation). Adjust for non-28-day cycles: mid-luteal = 7 days before next expected period.
How to measure
Serum immunoassay; LC-MS/MS preferred for very low or very high values.
Average cost
≈ $55 cash price. Often covered by insurance with relevant ICD-10.
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