I need help understanding report . . .

I recently miscarried at 12 weeks, after a normal ultrasound at 9 weeks.  I had a D&C after an ultrasound confirmed that the dead baby was still inside.  The pathology report states "container is a 20 gm, 4.4 x4 x 1.5 cm of aggregate of pink tissue fragments admixed with chorionic villi.  NO FETAL TISSUE nor cystic structures are present".  I then proceeded to heavily bleed lots of tissue for two weeks.  Is this normal?  Was the baby missed during surgery?  My OB won't discuss anything further than "your placenta was probably okay" . . . Does anyone know how to interpret these reports??