BFN:-( I am only 6dpo. What do ya'll think?ANSWER are apprecited!?

Alright. I had 2 HPT & I just HAD to take a test b/c a friend of mine sd that she get a BFP @ 6dpo w/ her first child. Even though RARE I had to just see!!! I know that sometimes implantation does not even happen until 6-12dpo. Has anyone out there taken a test @ 6dpo recieved a BFN & then tested again @ either 12 or 14dpo & recieved a BFP???!