Uterine Anatomical Flexion Degree ( Uterocervical Angle) and Intrauterine Device (IUD) Dislocation

in both groups with and without displaced IUD, uterus size, uterine width, cervical canal length, endometrial canal length, endometrial canal width, and the angle at the intersection of the imaginary lines corresponding to the middle of the endometrium and cervical canal, which can be detected by transvaginal ultrasound will be measured