Healthy HCG progression?

Allison • Boy momma 💙💙 Baby #1 born on 12/16/19 Baby #2 due 07/25/21!

These are from 9-14 DPO. I’ve suffered two chemicals in the past few months, so I’m a little more nervous than usual. I feel like the last couple haven’t gotten any darker. Period due in 3 days. I would love some advice!