In the real world, things are not black and white like you think they are in Mt. Pleasant.
In the first two trimesters, anything that puts the mother at risk instantly puts equal or greater risk on the baby. If mom doesn't survive, baby can NOT survive. So there is no scenario at that point where NOT aborting a fetus in the extreme case of saving the mothers life makes any rational sense.
In the thrid trimeter, there are options open, and possibilities. Babies *may* survive in the NICU born as early as 24-26 weeks, although the risk is extreme, it is certainly preferable to abortion. There again, is extremely limited(can't think of any at the moment, although there are always medical oddities that occur) scenario where an emergency cesarean cannot be performed in the same time as an abortion procedure. I'm seen just how fast it can happen with things go downhill.
Its the same old thing. At your age, and especially in the fairy-tale land of life on a big college campus, you simply lack the depth of experience and understanding to see the shades of grey that make life's big decisions so difficult. And yes, the proper term is ignorace. Its not meant as a derogatory term, per se, just the way it is.