Progesterone Above 3 ng/mL Confirms Ovulation (ACOG)
Progesterone over 3 ng/mL confirms ovulation, but 15-25 ng/mL mid-luteal is optimal for implantation. See full reference ranges by phase and sex.
Progesterone Lab Test: Reading Your Results
10 source-based articles maintained by the HealthRX.com Editorial Team.
10articles
3topic areas covered
May 26, 2026latest review
Progesterone Lab Test: Reading Your Results library
Showing 10 of 10 clinical reviews.
Progesterone Interpretation by Decade of Life
A decade-by-decade clinical guide to progesterone normal ranges, optimal targets, and how to interpret lab results from adolescence through post-menopause, with primary-source citations throughout.
Progesterone Lab Test: Drugs That Distort Results, Normal Ranges, and What High or Low Levels Mean
A clinical guide to serum progesterone testing: which medications can raise or lower results, reference ranges by cycle phase and sex, and how to interpret abnormal values in the context of HRT, fertility treatment, and TRT.
Progesterone Medication-Driven Changes: What Lab Results Mean on HRT, Oral Progesterone, and Cycling Protocols
Learn how progesterone medications change your lab values, what the optimal range looks like in the luteal phase versus HRT, and how clinicians interpret results across different dosing protocols.
Progesterone, Training, and Exercise: What Your Levels Mean for Performance and Recovery
How exercise intensity, training phase, and hormonal cycling affect progesterone levels in women and men, with normal ranges, optimal targets, and clinical guidance from HealthRX.com.
Progesterone: How to Interpret Your Result
Learn what your progesterone blood test means, reference ranges by sex and cycle phase, causes of high and low levels, and evidence-based steps to optimize your progesterone.
Progesterone: What This Lab Test Actually Measures
A clinical breakdown of the serum progesterone test, what it measures, normal ranges by phase and sex, and what high or low results mean for fertility, HRT, and overall health.
Progesterone: What Your Number Changes About Your Treatment
Your serum progesterone level directly shapes prescribing decisions in HRT, fertility protocols, and luteal support. Learn how specific ranges guide dose adjustments, medication switches, and monitoring intervals.
Progesterone: When to Order This Test
Evidence-based guide to ordering a serum progesterone test, including indications, timing, normal ranges, and clinical interpretation for fertility, HRT, and luteal phase assessment.
Progesterone: Which Tests to Order Alongside It
A clinical guide to the lab panels that should accompany a progesterone draw, including estradiol, LH, FSH, thyroid function, and metabolic markers, with evidence-based rationale for each pairing.