Wow, that is a terribly sad story. I can understand that longing to have a child totally, but if I was in the same shoes, I would never knowingly fall pregnant with a child I would not be there to raise. I would say maybe one of the reason's for the depression was knowing that they would not see their child grow, and the child would not know them, by the sounds of it, maybe they realised they thought they had made the wrong decision, and could not deal with the thought of it, who knows, but I hope the child grows up not to resent them for it. True the gift of life is soooo precious, but it is even more precious when your family are there to share it with you.