Progesterone levels!?!

DeAnna • DS-6/08❣️DD-12/10❣️DS-5/13❣️DS-3/16👼-12wks7/18 👼-6.5wks 8/29
I just listened to a voicemail said my progesterone levels are low/normal and my hcg is good. I have been spotting all week off an on and have an ultrasound on Thursday to see if it's a viable pregnancy but I am panicking now.... Have any of you had a low side of normal progesterone level???