Retained placenta after C-Section. Uggggh!

GilletteBaby

Had cs 11 weeks ago. At 10 weeks pp I was still spotting so I called my ob and she had me come in for a scan. Turns out I have some retained tissue or placenta that's just "stuck" in there. It's not attached to my uterus, no blood flow which I guesss is good. My question is, should I have a d&c to remove it or should I wait and see if with my next period my body flushes it out as my ob thinks it will? Anyone have experience with this?? I'm so pissed that after all I've been thru I am still not done with this!