I'm not 單身老貓 but those two conditions are just

simplu could not be diagnosed by ultrasound nor amniothesis. Period.

You are still in angery phase of dealing this which is normal. BUT, this is your baby and you brought him/her into this world AND you are fully aware of the possibility of having a baby with conditions like this before your pregnancy.

Love him/her. It is not the end of the world. If you cannot copy with it, let others love this kid.

Sorry to say that. But good luck with your coping proces, you'll have all the kind support.