Period or spotting?

Kayla

So My period was originally supposed to start on Thursday of this week. I noticed some pinkish discharge last night & assumed my period was just starting early. I wore a tampon for majority of today & when I took it out, I noticed there wasnt much blood on the tampon. It was a little pink/brownish blood. I havent had a tampon in the rest of the night and I also havent noticed any more blood. Anyone know whats going on?