Hi, I had gone through your question and understand your concerns.If you exclude miscarriage
then for diagnose the problem first you sent the fleshy material for histopathological examination.You should done ultrasonography
lower abdomen and pelvis to diagnose any pathology in uterus
.In case you have any questions in future you can contact me directly on http://www.healthcaremagic.com/doctors/dr-avijit-basak/68560. Thank you.