In cases of rape, is the only instance that I, personally, would agree with abortion. If the mother's or baby's life is in danger because of the pregnancy, more often than not, the mother will end up spontaneously miscarrying or have the baby surgically delivered, early, and so it goes from there, as I've observed from having worked in a hospital for over 31 years.
If it's being used as a form of birth control or just because one doesn't feel like being a mom, well--there are people out there who can't have kids, put yours up for adoption.
In cases of probably health issues/deformities in the child, well, are any of us perfect in all ways? Even if I knew that my own daughter was going to be born with a Retinoblastoma (eye cancer) and end up as an epileptic in her teen years, I still wouldn't have aborted. Yes, I pray, and yes, I believe in science too, as well as automatic castration for rapists. Perhaps knowing your sentence before the crime, would deter a lot more would-be offenders, thus diminishing the rape-induced pregnancies, but wishful thinking, on my part.