Progesterone calculator

Progesterone levels during a woman’s menstrual cycle and during pregnancy.

When to take the test?

When planning pregnancy, a blood test for progesterone is recommended around the 7th day after ovulation. You can use a conception calculator to estimate the timing for the test.

During pregnancy, a progesterone test is prescribed on any day if there are medical indications.

Progesterone levels

Progesterone level norms depend on sex, age, menstrual cycle phase, pregnancy trimester, and the laboratory conducting the test, as reference ranges may slightly vary. Progesterone is typically measured in nanograms per milliliter (ng/mL) or nanomoles per liter (nmol/L). Below are general approximate values.

Exact norms depend on the laboratory methods used. So always refer to the reference ranges provided in the test results.

Follicular phase:
1-1.5 ng/ml (3.2-4.8 nmol/l)

Luteal phase:
2-28 ng/ml (6.4-89 nmol/l)

Progesterone levels during pregnancy increase gradually, peaking in the third trimester.

1st trimester:
9-47 ng/ml (28.5-150 nmol/l)

2st trimester:
17-147 ng/ml (54-468 nmol/l)

3st trimester:
55-200 ng/ml (175-636 nmol/l)