Early Preg Spotting or AF?

Starting at 10 days before my period was due, I started having cramps. They lasted about a week. I feel like I might be peeing more often and my breasts have been hurting the entire week before my period. I normally don’t have tender breasts before AF. AF was due today but all I’ve gotten is enough to fill a panty liner, but not a pad. It’s brown, but my AF normally starts out browner anyways. It’s just a lot lighter than usual, but more than a few drops. I’ve also only bled once today when I normally start light around noon, and it gets heavier by now. I know spotting in early preg. is normal but I think it’s normally only a few drops of blood whereas mine is just a little heavier. Thoughts??