Is this implantation bleeding??

I’m usually very regular with my periods every 28 days. I get very painful period cramps that last for a good few hours followed by heavy, dark red thick bleeding.

However, today I’m 2 days early but had about an hour or just less of what I’d describe as cramping but much less painful than usual. Followed since by only this blood which is pale pink water / light brown/pink mucus. Only appears when I wipe as I’ve had a pad in all day but only had some small-medium pale patches. I’m currently 11dpo!