Implantation Bleeding or Period??

Chelsea • Child of God • Wife💍• Girl Mom (x2)🌸

So my period is late almost 2 months. And mine normally are since I have PCOS. But they’re also normally very heavy when I do get them and I never spot. Well, I’ve been spotting for the past 5 days. It started as a brownish color & is now a very light pink. It’s not enough to fill a panty liner or even the smallest size tampon. I tested about a week ago & got negatives. Could this be implantation or just af??