Progesterone

I miscarried in March and am Currently 7 weeks 2 days. After my initial lab work to confirm the pregnancy they immediately put me on progesterone. Anyone else taking this? I have our first ultrasound on Friday and am super nervous for no particular reason. I have a healthy boy and girl already.

UPDATE: Had an ultrasound and lab work today. Found out I’m miscarrying again 😭 I don’t understand what the issue is, I have two healthy kids and never had an issue. They weren’t able to determine how far I made it or anything. Feeling very discouraged.