Postpartum bleeding.. help.

I’ve had 3 kids. My first two, I bled for a week. This time, I bled for 3 days before it stopped completely. It’s been 9 days since I stopped and yesterday it came back extremely heavy. No clots or anything. It stopped again and then this evening it started again heavy. No change in activity or anything like that. Is this normal to stop for over a week then start again?