Progesterone HELP!!!

Kelli
Im currently 7 weeks pregnant with my second child. I have suffered 2 miscarriages the past 6 months one at only 4 weeks and the other and 6 and i was on the 200 mg progesterone supplements oral and vaginally. My progesterone levels were only an 8 when i received my labs back a few days ago and my nurse wants me to start back on the 200mg pills however I am terrified because they made me start bleeding in my last two which ended in miscarrying...my ultrasound looked great baby was implanted good &in the correct spot ...ughany advice would be very very much appreciated!? Im just lost at what to do.