Implantation bleeding? Help!

Allison • 35, married 9/10/05, DS 6/20/08, DS 8/25/09, DS 10/24/16, DS due 4/16/18
Hi! So I ovulated on 8/3 for sure (did a sip test), yesterday was 9 days post. Implantation occurs between 6-12 days after ovulating, right? Well yesterday I was spotty and only noticed when I wiped. Today, I'm bleeding more like my period and even a little clotty. Is this my period 6 days early (I'm very regular) or could it be implantation bleeding? Thanks ladies!