They are all born of water. Some might suffer a premature birth or a still birth, but they are all still born.
You are not aware, I guess, that the amniotic sac does not develop until later in the pregnancy. It's hard to imagine that a zygote living off its own energy while impanted into the uterus is somehow in the mother's "water." Do you think uteri are always filled with water?
I also find it hard to believe being scraped or suctioned off of the uterine wall qualifies as a "birth."
SD