Progesterone after IUI?

Mara • 1 👼🏻8/2018–>🙏🏼🌈 —>first round ivf 12/18. 1/2019 FET#1-CP. 2/2019 FET #2-BFN 4/2019 FET #3-miscarriage @ 11 weeks. Miscarriage #4 @ 8 weeks. Son born via GC 11/6/2020🌈💙

How many of you use progesterone suppositories after <a href="https://glowing.com/glow-fertility-program">IUI</a>? What is your dosage and when do you start?