My feeling is that establishing the nature of the "fetus" is sometimes useful. For me, it is alive (how is it not?) and it is human (how is it not?). On what grounds can we kill a living human who has committed no crime? I call that murder. They call it "choice". It is no more defensible than the Jewish Holocaust or slavery.
Your friends seem focused on outcomes (it will ruin a teenager's life) and not on moral principles (murder is wrong). Hey, Hitler envisioned wonderful outcomes too. Europe free of sub-human vermin! Oh, how lovely! But he was wrong and he committed great evil.
The religious police in Saudi Arabia beat women if they are not covering themselves and men if they are eating during Ramadan! Any stupid foaming at the mouth militant Christian, who is crying over the murder of babies, and would like to force others to stop, is not behaving as Jesus asked us to do; but behaving as Mohamed and his barbarians.