The phrase "pro abortion" refers to supporting the right for a woman to choose whether or not to have an abortion, emphasizing that it should be legally available and accessible. Full definition
I am pro abortion because I feel the need to defend the free will of women. (religion.blogs.cnn.com)
Also he has resorted to accusing brother Chris as being pro abortion rights because he cut a few checks for some republicans who go there. (nystateofpolitics.com)
Pro choice proponents are just that — pro CHOICE, not pro abortion. (religion.blogs.cnn.com)