Hi there and welcome. Well, that is outside of normal. It is most likely due to hormones and their trying to rebalance. I actually had no period for over a year due to nursing and the hormones associated with that.
I would say that you need to talk to your doctor about this though. I know most women go in for their 6 week post baby check up. Have you had your post baby check up yet? And what did your doctor say about the bleeding? I would absolutely call and make an appointment.
Are you passing clots?
good luck
I think your hormones could be off and you should see a doctor to help you get thru this and to get your hormone level back on track which will regulate your cycles again.