Bleeding 3weeks post partum

I had my baby 3 weeks ago and am still bleeding. This is kid #4 for me so I know that's still within a normal time frame, but what concerns me is that it's still BRIGHT red blood. With my other kids it always started out like a crazy heavy period and then got lighter as time went on, both in color and flow. The nurse told me a week ago not to worry about the color, but I'm still concerned that it looks like fresh new blood every day. Anyone else experience something like this?