Mid luteal phase progesterone level after IUI?

Darcy • 31 y/o happily married. Can't have a rainbow w/o a lil rain. 💦🌈 😇mom to 2 Angels &1 rainbow due 3/24/16. IUI/ Clomid
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! 😁