When I came up with this questions I figure out that the best I could do was to research specifically what an abortion was and the circunstantes than can take place to promote an abortion.
As wikipedia states, an abortion can be definen as various things such as as fetus or embryo removed or expelled from the uterus during the first half of gestation 20 weeks or less, or in the absence of accurate dating criteria, born weighing less than500 g or the termination of a pregnancy, whether spontaneous or induced.
In either cases taking into accounts if the fetes is replaced spontaneously or induce has an ethical matter and takes into account the life of a new person.
The issue comes in mind depending on the situation of course that the mother has passed to get pregnant like for example in a rape because in that case it will be giving birth to a child that she did not want to have but as an ethical overview killing a child for no particular reason it is not ethically and philosophically.
In my opinion, I will say and experts will consider reviewing the situation to see what is the main issue like being pregnant to young, having another father kid or even getting raped to after that take the decision to give birth or not.
I will personally would not even think about the posibilllity of killing a child just because of ethical reasons but also because my religion would not forgive that but even so, this case inquires lots of subtopics that will have to be studied to see to what extent this situation is ethically correct or not.