Implantation bleeding ?

Okay ladies,

So AF is due December 19th. My cycles are usually between 32-34 days long. They have never been shorter then that; however, I have had times where AF was late 2-3 weeks with no bfp. This cycle I stated spotting on the 9th. Which was 11dpo for me. This spotting turned into basically a full blown period.

TMI- But the blood was bright red the entire time with no clots. Normally my period starts off bright red and by the end is brown. Also I normally have lots of clots especially toward the end. Also this only lasted 3 days and my periods normally last 5 days.

Do y’all think this could be implantation bleeding or just an early period?