Hi, welcome to HCM.
Retroverted position on uterus
is normal variations of position. Hypoechoiec lesions in uterus are fibroids which is due to abnormal growth of muscle of uterus . It is commonly seen in many female. Also size small in your case. If size is large and associated with increased bleeding then it is matter of concern.
Ovarian cysts will resolve on medical treatment only.
Hope I have answered your query.