Implantation bleeding?

Megan • 26 years old! I Single Mommy to a beautiful baby boy💙💙

The day of my expected period i started spotting pink. Later in the day it became red and by the next day it was pink again then just went away. There were no clots,

No need for tampon or pad, and only had cramps a few times. Was this my period just being short or implantation bleeding? My periods always start brown, never pink