Reform Judaism understands the original position of the Talmud wherein is described the notion that an abortion should be performed only for the sake of the life of the mother, and even as late as the moment before the head of a baby emerges from the birth canal.
Abortion is an extremely difficult choice faced by a woman.
However, any decision should be left up to the woman within whose body the fetus is growing. It would be infinitely better to prevent teen and other pregnancy through contraception than to face births by teenage parents or others who could not take care of a child.