Implantation Bleeding @ 6dpo?

Tina

This might be a little tmi but you have been warned!

I am 6dpo and this am after I had my first morning pee there were 3 bright red spots of blood about the size of the tip of a pinky finger on the tp. Is this too early for IB? I have no other symptoms except a sore back which may be related to a back injury I suffered on Sept 28.