AF ?? Implantation spotting? Help!!!!!

Danielle
So AF was due on the 31st on the 30th I started bleeding it was this dark red brownish blood and It filled two tanpons in like 6 hours. So I thought I had started my period early but on Sunday it was just like a few brown dots every time I changed my tampon sometimes nothing and today. It's basically nothing but like one brownish dark reddish dot on my tampon or it has nothing on it. Is this my period or maybe Could I have ovulated late or twice and it could be implantation bleeding. My periods are normally really long like 7 days long so this isn't like my cycle to have a one or two day AF. What do yall think