Confused about AF

Hi guys, I really need your help.

I don’t know what category this question belongs to ( “feeling stupid” would be precise) but since I am ttc I’ll ask here.

I was supposed to get AF today (10/20 )and this morning when I wiped there was super light pink discharge and I thought that was it. But after that it didn’t become heavier, it’s been like that all day.

So my question is should I count this as a first day od AF or as a spotting? ( if I am not pregnant of course)

Thank you so much (i hope it’s pregnancy this time not some stupid progesterone roller coaster again 🤦‍♀️🙄)