I going through the exact same thing got to the yellowish discharge for a few days then bang bleeding again full on again at 4 weeks and still going and i have passed tissue/membrainy bits but i have passed that type of stuff with all my babies and never had a retained placenta the bleeding always stopped by 4 weeks the difference with this bub is i had a c section and the placenta was manually removed so i couldnt have any retained products and i am heading to 7 weeks now and its still bright red and i am having pain in my c section area so i am at a loss.