There are two ways of looking at a ban on abortions: one from the viewpoint of the pregnant woman who knows she cannot deal with a baby at this point of her life and another from the viewpoint of society: what are the consequences of banning or not banning abortion?
From both standpoints, things turn out demonstrably better if abortions are simply left up to the woman and her doctor.
Note that the crime rate in Europe, where abortions are often covered by national heath insurance, is far lower. Unwanted children have a tendency to grow up as adults with serious antisocial problems: criminals, wife-beaters, bad mothers.
If those that want abortions to be illegal really gave a damn, they would offer adoption services, support for women during pregnancy and child care. But mostly, they don't. Mostly, they are hypocrites who overdosed on catechism.