Progesterone – Progesterone is a reproductive hormone that rises after ovulation and supports early pregnancy.
What Progesterone measures
Progesterone measures whether and when you’ve ovulated, and supports evaluation of the menstrual cycle and early pregnancy.
Typical ranges
Highly cycle-dependent: low before ovulation, higher in the luteal phase. Labs provide phase-specific ranges. Reference ranges differ between laboratories and by age and sex, so always read your result against the range printed on your own report.
What high results can mean
Expected in the luteal phase and pregnancy.
What low results can mean
In the mid-luteal phase, can suggest a lack of ovulation.
How the test is done
A blood sample, often timed to about 7 days after suspected ovulation (around cycle day 21). At-home collection works well for this marker when the sample is processed by a certified lab.
FAQ
What is a normal Progesterone level?
Highly cycle-dependent: low before ovulation, higher in the luteal phase. Labs provide phase-specific ranges. Your ideal target depends on your age, sex, and health history, so review results with a clinician.
What does a high Progesterone result mean?
Expected in the luteal phase and pregnancy.
Can I test Progesterone at home?
Yes. A blood sample, often timed to about 7 days after suspected ovulation (around cycle day 21). An at-home sample processed by a certified lab gives reliable results.
This article is educational and not a substitute for medical advice. Discuss your results with a qualified clinician.