Hello,
You did not mention the age of your pregnancy. If you are term, it is better to proceed with a cesarean section as suggested by your consultant since a double loop of cord around the neck is not expected to unwind or get loose as labor sets in if vaginal birth is contemplated. Instead, it acts as a noose and tightens as uterine contractions strengthen. If you are not yet term, you should be under observation for fetal well being and take a healthy diet and adequate rest preferably in left lateral position to plan further management. Wish you safe motherhood.