I am almost 4 weeks postpartum. my bleeding has stopped for about a week now and when i woke up this morning i had some bleeding again. is this normal?

Maybe...: Some vaginal bleeding around 4 weeks postpartum may or may not be normal. If there hasn't been anything unusual about the labor, delivery, and postpartum period, a woman may consider it normal but keep aware of the bleeding so that she can later describe it to her Ob-Gyn doctor if needed, but probably normal if it stops in a few days and comes back in 4 weeks, and in another 4 weeks, etc...