My wife has 32 weeks pregnancy and absent of csp. As per ultrasound in fetal medicine absent of csp would include holoprosencephaly,sod,and cortical abnormalities like lissencephalyAfter mri cavum septum pellucidium is not seen without any difinite signs of holoprosencephaly. There is optimal separation of bilateral cerebral hemispheres with separation of the thalami.The fetal ventricular system shows mild diffuse prominence mainly involving the frontal horns on both sides. The third and 4th ventricles appear non dilated.Though bilateral orbital regions don t reveal any difinite abnormality, the possibility of sod should be ruled out.They have taken sample of blood and urine for sod. The fluid label is under 15mm. What should I do next?