All human beings are made in the image of God. (See Genesis 1 or 2).
It is murder to kill a human being. (See Exodous 20).
The Catholic Church says that abortion is so bad that anyone who’s had one is automatically excommunicated, and has to be absolved by a bishop.
It’s murder if somebody whacks a pregnant woman in the stomach and kills her baby.
It’s murder if somebody kills a minute-old baby.
It’s legal to give a woman an abortion in the last 3 months of her pregnancy.
Basically there are four differences between a newborn baby (or any other human) and an unborn one (I saw this in a video somewhere…sorry, can’t remember).
SLED:
Size: an unborn baby is usually smaller than a newborn. But are tall people more human than short ones? Are fat people more human than skinny people? Are big people more human than little people? More deserving of life? Of course not!
Lack of Development: fetuses are less developed than newborns. Is 3 year old girl less human than 30 year old woman because her reproducitve system isn’t fully developed yet? Do 30 year olds deserve to live more than toddlers? Of course not!
Environment: fetuses are in the womb, newborn babies are out of the womb. But am I more human because I’m inside and you’re outside? Do people in Tokyo deserve to live more than people in Czechleslovakia? (sp?) Of course not!
Dependency: babies in utero are dependent on their mothers for oxygen and food. But are diabetic people who depend on regular insulin injections to survive less human than non-diabetic people? Does one group have more of a right to live? Of course not!
Hope this helps!

good for you, writing about such an important topic!