Implantation bleeding at 5dpo?

Meagan
I'm 5 dpo and twice tonight after I went to the bathroom I spotted a teeny tiny amount. I've had bad cramps all day-like a pinching feeling. I'm not due for my period for another 8-9 days, I'm currently cd 19 so it would be an extremely early period for me. Is it possible for implantation bleeding this early?