Progesterone Pills?

Bre • 26 - Married - Early MC June 2017 - Rainbow Baby May 2018🌈💙- Due again March 2020

I am 3w6d, going in for my first blood draw this afternoon but I've already been prescribed progesterone pills.

I have another blood draw on Wednesday, hoping everything is going up accordingly this time after a 4w3d loss in June.

Has anyone else been started on progesterone without any blood tests first? I asked the nurse and she said even if my levels are good this wont hurt anything.

I'm just so freaking nervous!!