Miscarriage? please help

Brittany • TTC rainbow baby!
I'm not sure what is going on! My first hcg drawn was 15 then 28, then 22, then 8, then 9. I have no bleeding or cramping. I have more blood work on Monday. Has anyone experienced this? What was your outcome? I'm scared. I've had two previous miscarriages but I have never done this. I usually start bleeding as soon as they tell me my numbers are falling. Please help!