A Progesterone test measures the level of progesterone, a hormone produced mainly by the ovaries after ovulation. Progesterone prepares the uterus for pregnancy and maintains early pregnancy.
What This Test Measures
Progesterone:
A hormone that rises sharply after ovulation and is essential for preparing the uterine lining for implantation and maintaining early pregnancy. Low progesterone can contribute to infertility and pregnancy loss.
Reference Ranges
Women:
• Follicular phase: 0.1-0.9 ng/mL
• Luteal phase (after ovulation): 2.0-25.0 ng/mL
• Pregnancy (1st trimester): 10-44 ng/mL
• Postmenopausal: Less than 1.0 ng/mL
Men: 0.1-0.5 ng/mL
Who Should Consider This Test
• Confirming ovulation occurred
• Fertility evaluation
• Evaluating irregular menstrual cycles
• Recurrent pregnancy loss investigation
• Monitoring progesterone supplementation
• Part of hormone therapy evaluation
Timing of Testing
For ovulation confirmation, progesterone is typically measured 7 days after expected ovulation (day 21 of a 28-day cycle). A level above 3 ng/mL generally confirms ovulation; levels above 10 ng/mL suggest adequate ovulation.
What Results May Indicate
Low Progesterone (Luteal Phase):
• Anovulation (no ovulation)
• Luteal phase defect
• May contribute to infertility or early pregnancy loss
Low Progesterone in Pregnancy:
• May indicate ectopic pregnancy
• Risk of miscarriage
How It Works
1. Order your test online – no doctor visit required
2. Visit any Quest Diagnostics location nationwide
3. Simple blood draw takes approximately 5 minutes
4. Results delivered to your secure portal within 1-2 business days
Preparation
No fasting required. Timing relative to menstrual cycle is important.
Related Tests to Consider
• Estradiol – Primary estrogen
• LH and FSH – Pituitary hormones
• hCG – Pregnancy test
Why Choose Wittmer Rejuvenation Clinic
At $15, our Progesterone test is affordably priced. We partner with Quest Diagnostics for reliable, CLIA-certified laboratory testing.
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