Faint Line for 15 dpo

I had hcg betas drawn yesterday at 14 dpo and they were at 53. My pregnancy test line progression is below. I don’t see a change in 24 hours from 14 to 15 dpo. Has anyone had similar results and had success? I also have no pregnancy symptoms. I’m panicking that this could be my third chemical pregnancy in a row. Any advice?!