The current issue of America has a moving and thoughtful article on a woman's conversion both to Catholicism and to the Church's vision of the Gospel of Life. Here is an excerpt:

My pro-choice views (and I imagine those of many others) were motivated by loving concern: I just did not want women to have to suffer, to have to devalue themselves by dealing with unwanted pregnancies. Since it was an inherent part of my worldview that everyone except people with hang-ups eventually has sex, and that sex is, under normal circumstances, only about the relationship between the two people involved, I was lured into one of the oldest, biggest, most tempting lies in human history: the enemy is not human. Babies had become the enemy because of their tendency to pop up and ruin everything; and just as societies are tempted to dehumanize their fellow human beings on the other side of the line in wartime, so had I, and we as a society, dehumanized what we saw as the enemy of sex.As I was reading up on the Catholic Churchs understanding of sex, marriage and contraception, everything changed. I had always assumed that Catholic teachings against birth control were outdated notions, even a thinly disguised attempt to oppress the faithful. What I found, however, was that these teachings expressed a fundamentally different understanding of sex. And once I discovered this, I never saw the world the same way again

The rest of the article may be found here.