Dpo??? What's the deal.

Chelsea
I googled the average implantation day for most women and it's 8-10dpo. I also read the "good" test will pick up pregnany around 6 days past implantation. (See below) If this is true how the heck does it seem like everyone gets their BFP at 8, 9, and 10dpo. Seems really earily right? If this is true maybe I still have hope. BFN on FRER this am:( and 11dpo for me.