Progesterone in early pregnancy

Hello! I had a positive pregnancy test last week and a few days ago I had a blood hcg done and I am in fact pregnant (still early)! The only concern my doc had was my progesterone level was really low so she started me on two 200mg pills at bedtime. I'm sure others have dealt with this, but I'm just curious if your experience? Part of me feels worried that I need to supplement it this time around when I didn't with my first.

Her words are locked in my brain..."to help this stick" and I'm trying my best to be so happy about this baby but I'm just worried and need some advice I guess. šŸ’œ