Abnormal anatomy scan and amnio

V • After 14 months of struggle, had baby girl in 10/2015! So blessed...
I'm 20w4d with #1. We had our anatomy scan today. They saw a 2 vessel cord (single umbilical artery) and some concern for cerebellar hypoplasia (dandy walker malformation). They did an amniocentesis right away and recommended a fetal MRI next week. The doctor brought up that it's legal to terminate pregnancies in our state until 24 weeks but I don't think I could ever do that. I'm terrified. I think I'm considered high risk now...Any advice?