This may be a new concept for you but, yes, you can and should get serum progesterone levels -- monthly until they…

This may be a new concept for you but, yes, you can and should get serum progesterone levels -- monthly until they are at a therapeutic level (> 10 ng/ml – 20 ng/ml) then at least annually thereafter.

“Normal” P4 Values

• Female (pre-ovulation): less than 1 ng/mL

• Female (mid-cycle): 5 to 20 ng/mL

• Male: less than 1 ng/mL

• Postmenopausal: less than 1 ng/mL

• 1st trimester: 11.2-90.0 ng/mL

• 2nd trimester: 25.6-89.4 ng/mL

• 3rd trimester: 48.4-42.5 ng/mL