Progesterone Test: What It Shows and What It Does Not
Quick answer: Progesterone is a hormone made mostly after ovulation. A progesterone test is often used to see whether ovulation likely happened. It depends heavily on when in the cycle the blood is drawn.
About this test
The test measures progesterone in your blood. Levels are low before ovulation and rise afterward.
Why is it ordered?
- Checking whether ovulation likely occurred.
- Fertility questions.
- Looking at irregular periods.
- Following early pregnancy in some cases.
What results may show
- A higher level after expected ovulation suggests ovulation likely occurred.
- A low level at that time may suggest ovulation did not occur that cycle.
What this test may not show
- Timing matters. A draw on the wrong day can look low even with normal ovulation.
- It does not show egg quality or the ability to conceive.
- Hormonal birth control and other medicines change results.
- One result is a snapshot of one cycle.
How to prepare
- Cycle timing often matters. A draw about 7 days before your expected period is common for ovulation checks. Your provider may advise a day.
- Tell your provider about hormonal medicines.
Where you can get this test
| Option | Price | Includes |
|---|---|---|
| Female Hormone Panel | $189 | FSH, LH, estradiol, progesterone, prolactin, TSH, testosterone |
| Menopause Panel | $149 | FSH, LH, TSH, progesterone, estradiol |
A doctor’s visit is not required to order. Order online, then visit our Buffalo Grove or Lake Zurich location for the sample. Review results with your own healthcare provider.
Related tests
Frequently asked questions
When should progesterone be tested?
Often about a week after ovulation or 7 days before the expected period, but your provider may advise a specific day.
Can progesterone confirm ovulation for sure?
It suggests it. Timing and cycle length affect the interpretation.
Does birth control change progesterone?
Yes. Tell your provider what you take.
Sources
Medically reviewed by Rodion Levin, FNP-C, Founder and Medical Director. This page is for general education. It does not diagnose a condition or replace advice from your healthcare provider.
