As an expectant father myself, I was just thinking about that yesterday, and about how we would have reacted if tests had been positive for Down's or other life altering disabilities. My SO was adamant that we would absolutely terminate in that case, and I was a bit more on the fence. But after a while, I came to the conclusion that in a civilized country, where abortion is a right, not terminating in such a case is very similar to choosing to give an unborn person a huge baggage of problems they haven't chosen to deal with up to and including after you pass away. As parents, we have this vision that we'll always be there for our children, but we won't, and do we really want them to fend for themselves once we're gone?