Mid luteal phase progesterone level after IUI?

I had <a href="https://glowing.com/glow-fertility-program">IUI</a> done 7/2 and went in for a mid-luteal progesterone blood test yesterday and waiting for the results now. Anybody know why they do this and what range is good and means I could be pregnant? I'm not sure I can wait another whole week to test! 😁