I just read my ultrasound report and I'm a bit worried. It mentions something like "retained products of conception," and "small left ovarian simple cyst." Also, it talks about a "heterogenous endometrium" and some vascularity, but I'm not really sure what all this means. Could this be serious? There was also something about minimal fluid in the pelvis and no obvious wall thickening in the bladder. Should I be doing something about this or is it something that will resolve on its own?