IB/period question

Hi I’m 31 and TTC for our 1st! This is month 6. I was suppose to get my period 3 days ago since that I’ve been spotting brown, then bright red, just one wipe then nothing. Next day it happens again. Nothing ever to fill a pad, probably only a quarter coin size of brown on a pad a day if that. Now is this that spotting around the time of your period but you could be pregnant thing, or just a slow period?

TIA!