Are the Republicans really pro-life?

They aren't necessarily... The media and the libs like to try to differentiate pro-life and pro-choice through pollitical affiliation. Truth is there are just as many Pro-Life Democrats as there are Pro-Life Republicans. This is more of a religious/moral/ethical issue, and not really a political issue. You will note that in general Catholic and Jewish people are very pro-life/against abortion. You will also statistically note that those two religious groups also tend to gravitate toward the Democrat party.