PP bleeding vs period?

Brianna
I'm current 3.5 weeks pp (vaginal delivery) and my bleeding has picked up again over the last few days (I was just spotting pink and brown but now I'm back to red and it's a little heavier than just spotting.) Is this typical of pp bleeding or could this be my period? I'm exclusively breastfeeding so I wasn't expecting a period this soon but it seems weird that I'm bleeding again.