Hcg levels slow rising


Hi all,

I had a miscarriage in june and got pregnant again in august. As I was pretty anxious I had hcg levels done every 48hrs from when I was 5w2days. Does anybody think there is still hope that it is ok. I have my ultrasound on wednesday...and am just very sad that this is happening again. What is wrong with me?

5w2d - 2850

5w4d - 4200

5w6d - 6900

6w1d - 11200

6w3d - 14300

6w5d - 18300

7w1d - 20600