I’m confused

Kelly

My period came 11 days early it was somewhat light to a normal flow for the first 2-3 days now I’m on my “7th” day. I didn’t bleed at all the 4th day. The 5th & 6th day I bled very little kinda just spotting. And now today it’s very light. I never get my period that early. Yes I am sexually active. Do you think this could be implantation bleeding? I did have mild cramps but I always do. I have been feeling a little nauseous.