Progesterone Test

What Is a Progesterone Test?

A progesterone test measures the levels of progesterone in blood or urine. Progesterone is a hormone produced in the ovaries and the placenta during pregnancy. It helps regulate the menstrual cycle and is necessary for a healthy pregnancy. This test may be used to diagnose infertility, test for early or late-term pregnancy, or diagnose and monitor gynecological conditions.


There is no specific preparation needed for a progesterone test. You may need to avoid eating certain foods or taking medications prior to the test, so be sure to speak to your doctor about any potential restrictions you should follow.


The progesterone test is usually done in a laboratory or doctor’s office. You may be asked to provide a urine sample or have blood drawn from a vein in the arm. The sample will then be sent to the lab for analysis. Results will usually be available within a few days.


There are two main kinds of progesterone tests: qualitative and quantitative. A qualitative test only gives a “yes/no” answer on whether the hormone is present, while a quantitative test measures the exact amount of progesterone present.


The progesterone test is a safe and routine procedure with minimal risks. The risk of side effects is very low and they are usually related to the method of testing. For example, having blood drawn may cause some minor discomfort and bruising at the site of injection.

Why Is a Progesterone Test Done?

  • To diagnose infertility
  • To confirm or rule out a pregnancy
  • To diagnose and monitor gynecological conditions
  • To detect ovarian cysts
  • To assess the risk of giving birth prematurely

When Is a Progesterone Test Done?

A progesterone test is usually done between the seventh and 21st day of the menstrual cycle, but may be done earlier or later, depending on the woman’s individual circumstances. It may also be done during pregnancy to monitor the health of the fetus.