Postpartum question

Hello all!

I am 4 weeks postpartum and have been bleeding bright red blood and passing clots. This stated about a week ago. I am exclusively pumping and have light cramping. I called my OB last week due to being concerned and they brushed it off as nothing to worry about.

Have any of you actively bled and passed clots this late postpartum? Is it normal or is there something else possibly going on?

Thanks for your input.