Low proestrogen

Jessica
I got blood work for at 4w3d because of the holiday and all I just got my results back. My hcg looked great at 918 but my proestrogen is a 6.7 which is low (should me above 10.) this is my second pregnancy. My first ended in a miscarriage at 5.5 weeks. During my first pregnancy I also had low proestrogen so they have already started me on the supplement. I'm so nervous though! I want everything to go right this time.