Abortion is the deliberate termination of a pregnancy leading the death of the unborn baby.
I think there are different stages of abortion. If you abort the child before it becomes a fetus then you are aborting nonsentient issue. It would be the same as removing an appendix I think.
If you abort a child when it is a fetus then you have to wonder when it is a sentient being. If the fetus is thinking then you could be killing a person.
The best thing to do is no get pregnant if you are not ready.