Its not her body, Her choice anymore and more arguments When one is pregnant, Are they considered to have two heads, Four arms, Etc? No. So therefore it isn't just her body, But another human inside. Life begins at conception (fertilisation), Says Science, Ignoring science is an, For lack of better word, Ignorant thing to do.
More arguments I have heard for pro-choice is the rape subject. Rape and incest combined is less than 1% of causes of abortian, And even then, There are variables, The small fraction cannot be used to justify the other reasons either. Even so, Punish the rapist, Not the child.
Once one decides to have intercourse, They have to be willing to face the consequences. Adult choices, Adult consequences. And a life should not be determined by whether the parent wants the baby or not, So because the parents don't want the child, It is not human? Its worth as a person can be chosen by the parent? Of course not!