An abortion is a procedure with the direct intent of killing the child. Delivering a child prematurely is not an intent to kill it, especially if one intends this to baptise a child which might otherwise die.
Actually, I believe that the church does not make this distinction. Forcing the delivery of a child that will not be sufficiently developed to survive is not considered any different than aborting the child. I will try to find a link for this but I remember seeing this very recently.
Yes -- although I think there can still be some confusion on this point. There used to be a distinction made between "spontaneous" abortion (which is not induced, and which we commonly called miscarriage or stillbirth depending on the baby's gestational age); and so-called "therapeutic" aka elective abortion.
But that's beside the point, I guess. What I was trying to find out was if the "pro-life" doctors in question intentionally destroyed the babies before delivery; or if they simply did emergency deliveries, while knowing the babies were too young to survive.