Progesterone test to confirm if ovulation has occurred on day 21 of a menstrual cycle


 *Progesterone is checked on “Day 21” of your menstrual cycle to confirm that ovulation has occurred. This is because progesterone levels rise following ovulation. A low 21 Day Progesterone level suggests that your cycle was anovulatory and no egg was produced. If no egg is produced, pregnancy cannot be achieved.

What does it test for?

Progesterone at day 21 of your menstrual cycle.

It is a hormone produced mainly in the ovaries by the corpus luteum (what the follicle turns into after it releases the egg). Progesterone helps prepare the uterus for the implantation of a fertilized egg. If a fertilized egg implants, progesterone then helps the uterine lining (endometrium) to maintain the pregnancy.

Who should get tested?

Any woman trying to conceive, planning for the future or just curious about her fertility status.

When to test?

This test must be taken 7 days before an expected period. This is Day 21 of a 28 day cycle. If your cycle is longer or shorter, you must adjust the day you take this test accordingly. For example, if your cycle is usually 35 days, you should take this test on day 28.

Why knowing your Ovarian Reserve is important?

Decrease with age

Fertility is decreased by half among women in their 30’s compared with women in their early 20’s.

One in six couples

1 in 6 couples of reproductive age experience difficulties conceiving a child.

Time to conceive

Ovarian reserves decrease with age and taking a test, can help you know your current status and plan for the future.

Progesterone-Ovulation $89



How to provide a sample

Watch our instructional video to see how easy it is to collect your sample.




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