In my experince, you bleed longer after each pregnancy. (I have 4 children.) I don't recall stopping for a few days and then starting up, but I do recall light bleeding becoming heavy again after I over exerted myself. After my last pregnancy, at six weeks pp, I wasn't bleeding exactly, but I had a lot of whitish/pinkish discharge. Then I read in one of dh's medical textbooks that lochia does change from bright red to pink to white. I didn't get around to my pp check up until 7 weeks after birth and by that time the discharge had only just stopped. I hope this helps.