When did you get progesterone tested?

Kelly • 2014 wife 💏 • 2017 special needs mama 🎀💪🏻 • 👼🏼👼🏼👼🏼• 🌈 due Oct

After a miscarriage when did your OB check progesterone levels to determine if you needed supplements or shots with your next pregnancy? After you got pregnant again? Before that? Thx!