No they have done genetic test but couldnt find anything. I lost 2 girl at 11wks pregnant and 22wks pregnant who we called macy as had to give birth also have a little girl meghan who is 9 but she has mild spina bifida which is related to anecephalic, so was very shocked to find out i was having another girl as meghan was a micacle! We just have to wait and see if this baby will be ok when shes born, sorry to hear about ur little boy its a horrible thing to go through x