Period or something else?

So I am supposed to start my period tomorrow and usually I start spotting 2 days before my period and the day before it start it gets heavier into me having a full flow on my first actual period day. Well that has not been the case this month yesterday I spotted for maybe 2 hours then stopped and today I’ve been spotting on and off I see little tinge of blood in my panty liner but when I wipe nothing but regular discharge. Has anyone else had this before they started their period?