Any hope? Faint then lighter test.

Hi ladies,
I tested last night and got the faintest second line. This am, with fmu, I think there was a line, but it was even lighter. 
I'm only 15 dpo, and based on my chart, I think I started to implant (if at all) about 8 days ago. My hcg level could be super low still. 
Has anyone known of this situation NOT turning out to be a chemical pregnancy? I will just wait and see of course, but want to be hopeful! 

Vote below to see results!