Spotting after period

So I usual have a 7 day period. But the thing is it takes a extra 2 or 3 days after that for me to be “fully” off. I consider fully off I’d when I have no blood in the panty liner. This is day 10 of my “period” but it’s just spotting. Why do I always spot after my period. And is there a way for me to clear it up faster ?