I agree that one should be responsible during consented sex and use protection. However, women are getting raped everyday, are they bounded to care for a child she might not love? Will the child be happy to know that they are creation of rape?
There are also cases where a pregnancy can endanger the mother herself, what should she do then?
There are just so many many possibilities and reasons why a woman choose to have an abortion, and I will not judge her for that.