The argument about Abortion is a tough one and really not described clearly in the Bible. Just for an honest debate on what is said in the Bible, here are some of the information that is Pro-Choice:
Life is described at first breath in many parts of the Bible (Genesis 2:7, Psalms 33:6, Ezekiel 37: 5-6, 9-10, 13-14, Job 34: 14-15, Isaiah 42:5)
Age of Vitality (earliest when a baby can live outside of host) is around 22-24 weeks. You could argue that life prior to Age of Vitality life is not possible and therefore Abortion should be permissible per the Bible. There are also mentions of Abortion in the Bible and that every woman that has cheated and is with child should have an Abortion, by a Priest. (Numbers 5:11-31). I would also argue that unborn children do not acquire original sin (Deuteronomy 1:39, Romans 5:12-13) and it is better for them to never enter life and rather be given eternal salvation.
In Exodus 21:22, it says that a living being is more important than a fetus: if a man causes a woman to miscarry, he should be fined — but if he kills the woman, he will be put to death.
I will throw this in here because this absolutely insane and horribly abused book of the Bible (Leviticus) is used against same sex couples, so clearly you must agree that babies have no value to God until that they are one month old (Leviticus 27).