General
Progesterone test
Lab test

Progesterone test

Ordered for women investigating irregular cycles, difficulty conceiving, or luteal phase concerns, and for those on progesterone supplementation who need their levels monitored. Cycle timing is important for accurate interpretation. No fasting required. Results reviewed by a General Medicine clinician.

Receive actionable insights and deep analysis—not just lab values– in as little as 48 hours

Clear guidance, and follow-up care available

Simple, online scheduling for labs and everything else

Most insurance accepted

Board-certified

No hidden fees

Available nationwide

What is a Progesterone Test?

The progesterone test measures circulating progesterone levels in the blood — a hormone essential for regulating the menstrual cycle, confirming ovulation, supporting early pregnancy, and maintaining uterine health. Because progesterone levels vary significantly throughout the cycle, results are most meaningful when interpreted in the context of where you are in your cycle.

Ovulation confirmation

A progesterone level above approximately 3 ng/mL in the mid-luteal phase (around day 21 of a 28-day cycle) confirms that ovulation has occurred — the most clinically useful application for women investigating fertility or cycle regularity.

Luteal phase and fertility assessment

Low mid-luteal progesterone may indicate luteal phase deficiency — a common contributor to irregular cycles, difficulty conceiving, and early pregnancy loss that can be addressed with appropriate treatment.

Pregnancy and supplementation monitoring

In early pregnancy or assisted reproductive cycles, progesterone levels help assess whether adequate hormonal support is present and whether supplementation is achieving the target levels needed to support implantation and early development.

Complete insights in as little as 48 hours

1

Book your test

Instantly schedule at 2,000+ labs nationwide, at a time that works for you. Most visits take 15 minutes or less, with both walk-ins and appointments available.

2

Get results in 48 hours

Your results are delivered quickly—and reviewed by medical professionals. You’ll get clear explanations, robust health insights, and recommended next steps tailored to your health needs.

3

Take action with physician guidance

Choose to review your results and manage your plan with a General Medicine physician—or simply use the insights on your own.

4

Track progress over time

Repeat annually to see trends, improvements, and new emerging risks or book individual tests that focus on your set goals

All your care in one place. That’s the General Medicine difference.

We help you understand your options, connect you to the right clinicians, manage prescriptions, coordinate any needed evaluations, and keep an eye on your overall health along the way. It’s comprehensive care that looks at the full picture — your goals, your history, your lifestyle — and makes it simple to move forward with confidence.

Your care plan
Clinician

What's included

Test type

Blood sample

Collection method

Venipuncture

Fasting

Not required

Results processing time

1 to 12 days

Progesterone

Indicates hormone levels that support pregnancy and regulate the menstrual cycle.

Virtual visit with clinician

Ongoing support, always available.

You’ll be supported by experienced clinicians who care for a wide range of health needs, from everyday concerns to more complex conditions.

Our clinicians track your progress over time and adjust your care as needed. If medication is prescribed, we’ll manage dosing and monitor for side effects. If lab testing is recommended, we review results and refine your plan accordingly. You’re never left to navigate care on your own.

What our customers have to say

Hear from people who felt heard, understood, and supported on General Medicine.

“I found the ease of setting the appointment and how quickly I was able to be seen to be amazing. The physician was very friendly and amazingly helpful.”

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“General Medicine is easily the most approachable, efficient, high-quality, and responsive care team I've had the pleasure of working with.”

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“General Medicine helped me get the imaging and blood work I needed, referred me to the right specialists, and even helped me find a new family doctor.”

Bridget, Mississippi

Order your lab today.

Frequently asked questions

What is a progesterone test used for?

Progesterone testing is most commonly used to confirm ovulation (a mid-luteal level above 3 ng/mL suggests ovulation occurred), assess luteal phase adequacy in women with fertility concerns, and monitor progesterone supplementation in early pregnancy or assisted reproductive cycles.

When during my cycle should I have this test?

For ovulation confirmation, testing should occur approximately 7 days after suspected ovulation — typically around day 21 of a 28-day cycle. Testing at the wrong cycle phase produces results that are difficult to interpret, as progesterone levels vary dramatically throughout the month.

Do I need to fast for a progesterone test?

No fasting is required. Progesterone levels are not affected by recent food intake.

Can progesterone testing help explain irregular periods or miscarriages?

Yes — low progesterone in the luteal phase (after ovulation) is associated with irregular cycles, difficulty conceiving, and early pregnancy loss. Testing in context with other hormones helps identify whether luteal phase deficiency may be contributing.

I'm already on progesterone — can I still test?

Yes, testing is still useful, but inform your clinician that you're taking supplemental progesterone. Results will reflect your current levels on that dose — which is exactly what's needed to assess whether your dose is appropriate.
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