In 2005 Mitt did a 180 on pro-choice and became pro-life. Before that time, he was like too many Americans, not paying too much attention to what being pro-life was really about.
Oh for crying out loud.
Romney was obsessed with abortion, he was a Bishop, he counseled Mormons on abortion, he personally excommunicated people from his religion, he fund raised for abortion, gave money to Planned Parenthood, he passionately explained why we desperately need legal abortion.
Mitt Romney tells us on video about his mother's pro-abortion courage in 1970, Mitt tells us on video how he personally committed to abortion in 1963.
Mitt has never quite explained what changed his mind on abortion, his tale is a little sterile, and the other guy says they never talked about it.
Even in 2005, Mitt flip flopped on abortion, and 2005 was when he started his Presidential campaign, he sought the permission of his Holy Prophet first though.