What does this mean

Today would be two days late if my period. I think I got it though? I had a mini cramp and when I went to check there was brown stuff. Ok that means old blood right so I’m guess I got my period? I’ve had symptoms and everything but what was weird this time around is that I had crazy cramps last week and bloating more than this week. Also is it true that brown blood could mean I’m pregnant if I don’t bleed normal blood?