Period or implantation

Mallory

So today I was supposed to get my period. Me and my fiancé have been trying for months now and nothing☹️ today all morning I felt fine and I’ve been waiting for my period. I got it at least I think I did but it’s extremely light and I have a very heavy flow. At the beginning of the day it was pink almost orange and now it has hints of brown. Could this be implantation blood?