Spotting or period?

My AF was due on Friday and came as expected, or so I thought...

It was very light on Friday and I didn’t need to use any pads or tampons. Yesterday I was going out so used a tampon just incase and after about 6 hours, there wasn’t much. I replaced it and put another tampon in and again, after about 4 hours, barely anything.

Today, I’ve had nothing, when when wiping. Usually my AF is about 3-4 days and although it’s never super heavy, it’s usually heavy enough to use a good few tampons through the day...

Could this be spotting instead or is it still too much? If it’s spotting, could it be a sign of pregnancy?

I thought I was out this month but now I’m not sure...

TIA 💜