Reagan was never pro-abortion, he signed that act years before the phrase "pro life" had even been created. He admits that he got taken when as a rookie, he signed what almost all of us thought was a medical bill, we didn't realize then how the left can twist things, and run for daylight through a crack.
The way the left exploited that bill, leading to abortions, was a big wake up call to all of America, and resistance started building, it was an eye opener for me for instance.
Mitt Romney tells us that he was already pro-abortion at that time, he became pro-abortion in 1963.
Romney remained passionately pro-abortion throughout those years of the 1960s, and after Roe v Wade in 1973, and through the Reagan years (Romney left the GOP when the pro-life Reagan was nominated), and through out the abortion wars of the 1980s and 1990s, and into the mid 2000s, then one day he said 'I switch to pro-life, and am announcing for President as a republican'.
Romney was the most passionate defender of abortion of any one that we can recall, his moving defense of abortion was the most sincere that you find Mitt being, watch the videos.
Here is Romney raising funds for abortions, at Planned Parenthood.