First you are wrong about calling it a baby. You are still doing that.
Second, if the decision is made in her obstetrician's office, something is medically wrong. Healthy women with healthy embryos or fetuses go to abortion clinics, not gynecology/obstetrics offices.
What I believe as a Christian is abortion opponents have absolutely no justification for refusing to kindly provide the help pregnant girls and women need (or supporting such actions if they can't) regardless of why an unwanted human life is growing inside her.
Jesus said, "Do to others what you would have them do to you." Not "other Christians" or "other righteous people." Just "others" - which can only mean every person you meet. Do you want to live in physical, mental, and social misery because other people had treated you like crap?, a direct violation of what Jesus told us to do? My Christian position is stop pretending girls and women are unworthy of kindness and assistance from anyone who can provide it, which would go a long way toward reducing the number of abortions.