My period was four days early and only lasted 2 days? what is going on? could this have been implataion?

I think I ov AROUND AUGUST 2 had up. on that day!!! my period is a 33 day cycle for the month of July i started on the 14th and lasted about a week (5-6days)....heavy flow!!! well so i was expecting to start my period on the 16th of this month. i'm never early and i'm always a day or two later than the previous month! i started bleeding really light blood( light pink) on sunday the 12th(4 days b4 AF) then as the night went on the flow got a little bit more red like bright red but still different from AF like there was a lot of Cm with the blood which gave it a clearish red color! on day two the flow got heavier almost like a AF but not as heavy and not as much blood still bright red....with clots in it. enough for a liner not that much blood for a pad. even tried a tampon but not evnough blood was uncomfortable. today(day 3) there is no more flow , ust when i wipe it is the pink color again! my period is usually heavy and lasts almost aweek! could this be implatation bleeding