Thanks for your query.
the answer to your query is - YES.
As you are on the Nuvaring
, chances of conception are very low, as it acts as a contraceptive
However, it is not 100 % effective, and it sounds like you have miscarried and aborted the tissue.
Another possbility is endometrial hyperplasia
or polycystic ovaries
In both conditions, the lining of the uterus gets thickened, and ultimately when it sheds off with the period, it resembles a decidual cast or a fleshy piece of tissue.
You would have done well to preserve those pieces to send for biopsy.
Please see your gynecologist, for ultrasound
and necessary blood work to confirm whats going on.