Structural changes in the cervix. Cervical canal length 36.4 cm. Is th…

Structural changes in the cervix. Cervical canal length 36.4 cm. Is this normal for my gestational age? I have an appointment with the doctor on 20th. The doctor during the ultrasound looked at the cervix and said something wasn't right about its length. She checked it from all sides and even vaginally re-checked.