First of all, in many scenarios, an abortion is necessary and it would be wrong not to let the mother choose an abortion. For example, if a woman is raped, is she expected to keep the child? Of course not! Even if the mother decided to have the baby and support it, for the rest of her life she will be burdened simply because she was a victim of a predator. Also, if a woman was being safe and using protection, and the protection failed, she should be given the chance to choose. Although it was partly her fault, she was being responsible for her actions and practicing safe sex. Finally, there is the circumstance under which tests prove that if the baby is born, it will be deformed or handicapped. Such a child will suffer for the rest of their life, however short it may be. Though the parents may choose to keep the child, if it will suffer physically, they might want to stop its suffering before it even starts.
Plus,
Bibliography: Mollenkott, Virginia Ramey. Respecting the Moral Agency of Women. A Milton 's Encyclopedia, Volume 3, Lewisburg: Bucknell University Press, 1978 Pro-Choice Views, About.com- News/Issues, About.com, Inc.