Cd 24 progesterone test...

Boots 🖤 • Expecting our Rainbow 🌈 Due Sept 2023
Hey there! 
So I run a 25/26 day cycle. Was started on Femera cd 1-9. Drs ordered a cd 24 blood test to confirm O... my concern is isn't this to late to be testing my progesterone levels? 
Any help would be greatly appreciated. I just did the test yesterday so I have no results yet