Science has no metaphysical ruling on all this. As FAC said, the fetus is biologically part of a womans body until it is viable. If your religion views the fetus as having a soul, a consciousness, a destiny in the world, then dont have an abortion and help other pregnant women if they are considering adoption or other options and vigorously support sex education and free contraception and support to young women in coercive relationships, giving these supports to those most needy so that there will be fewer abortions and fewer unwanted babies. How hard is that to figure out?