Implantation bleeding???

Shannon • 20 years old, 5 year relationship, PCOS, TTC. God doesn’t give you more than you can handle!!! ♥️♥️♥️💛💛💛

How long does implantation bleeding last? I have been having what seems to be implantation bleeding but it’s lasted about a week. Not sure if it’s just light spotting now or what?