According to God life starts before conception even.
Jeremiah 1:5
"Before I formed you in the womb I knew you, before you were born I set you apart; I appointed you as a prophet to the nations."
I submit that if he knows a prophet before the prophet was conceived he also knows each of us before we are conceived.
As to this woman's mindset.... selfishness maybe? She knows first hand the struggles she has had to endure because her daughter was born with down's syndrome and feels if her daughter had not been born those struggles would not be. She also in unrighteous "sympathy" doesn't wish those same struggles on another.... I do not in any way agree with this woman but I also do not know first hand the difficulties of having a child/ child with any sort of disorder.
Still wouldn't suggest an abortion or any such thing.
Abortion is a sin. I don't really know what else to say. Not my place to condemn anyone only actions.