I suppose it's theoretically possible that there are people in the world who would identify themselves as "pro-abortion." If they exist, I've never met them, although I know a number of people who have been personally impacted by abortions. And by "impacted" I mean scarred, wounded, emotionally, spiritually, psychically damaged. Men and woman, although, probably not surprisingly, mostly women, because that's how this tends to work in our society. In the wondrous words of John Prine:
From a teenaged lover to an unwed mother
Kept undercover like some bad dream
While unwed fathers, they can't be bothered
They run like water through a mountain stream
Because of who I am, and because of my background, it shouldn't surprise you that these women are Christians, fully indoctrinated in the True Love Waits and purity ring sub-culture of evangelical Christianity. Except, of course, when the time was ripe true love didn't wait because that's a difficult deal. By that point little Joshua or Hannah were a-forming, and big Joshua and Hannah, all of 17 or 18 years old, were freaking out and did the only thing they knew how to do, and which they regret to this day. Some of them still show up in the same evangelical churches, where they are taught that people who have abortions are baby killers. Praise God.
The article linked below lays out a fairly clear, common-sense alternative. You want to reduce the number of abortions? You're not going to do it by outlawing abortion. But there is a way. It is a way that presumes that human beings - men and women, since that's the pairing that inevitably results in unsupportable pregnancies and abortions - are going to have sex. And there is some percentage of the population that will never accept that fact for various philosophical and theological reasons, even though there are few things in life that are more self-evident. That way involves preventing pregnancy through birth control.
Of course, another alternative is to keep on dreamin' the impossible dream, the one that has been dangled over the heads of conservative Christians for 46 years, It is currently championed by a presidential serial adulterer who was diddling porn stars while his third wife was home nursing the new infant. He runs like water through a mountain stream. Nevertheless, this is the vision that causes conservative Christians to salivate in Pavlovian fashion and press the red button.
Meanwhile, the same bunch would never support a sensible measure that would actually prevent pregnancies in the first place. That would be immoral.