Help please! Progesterone advice!!

Good morning ladies, I just got the dreaded call from my dr with my levels, she said HCG is normal but my progesterone is low and I need to start the vaginal suppositories. I am freaking out!! This is technically my 3rd pregnancy my first was fine no problems but I miscarried in July at 8 wks so now I'm just freaking out the same thing is going to happen! Has anyone else had low progesterone and taken the suppositories and been ok?? Any advice is really appreciated.