Took 1st 2 pills missed the rest, 8 days later bleeding, but

I took the 1st 2 pills (Dec. 31st and Jan 1st) stopped taking the pill, and on the 9th started bleeding. I am not having cramps (I usually have bad cramps and fatigue), and it isn't like a period, but it isn't just spotting. I was wondering could this be implantation bleeding this early.