Weird period???

Okay so my period started on the 2nd(five days early) and it wasn’t heavy it was a reddish pink. I wore a tampon but only used two the whole day and one on Saturday morning and then it just stopped and I didn’t bleed again until Tuesday(spotting not bleeding). I took a pregnancy test Sunday because this was so abnormal to me and it was negative.

My periods are always heavy(I use super & super plus tampons) and last 6-7 days and are always on time. I’ve never experienced anything like this.

I’m sure it was a period but what’s the chance this was implantation bleeding? Would you take another test?