Faint line now bfn?? Help!!! šŸ˜¬

A lot of people thought they seen a vfl on a dollar store test I took at 15dpo, this is 17dpo and now I see nothing ā˜¹ļø

I had a couple days of very tiny amount of brown spotting but AF never showed. Iā€™m so confused...

Did I just miss a period this cycle? Am I out??