"Would you have given birth?"
Yes, absolutely. In my faith, we believe that one of the purposes of earthly existence is to get a physical body and that, no matter how defective the body in mortality, it will be perfected in the Resurrection. No matter how long the child lives, she will have made this step in her progression and eventually have that perfected body from her mortal parents as she goes to her eternal destiny.
I'll always remember that conversation.
Survival is the concern right now, I would think. She needs to be loved and held. Later, maybe reconstruction might be possible to some extent.