For His Glory

We are created in the Image of God for His Glory. This is our purpose on earth. 

As His image bearers, we are proof there is a God. We are living growing proof and reflections of Him in image. 

We also need to remember that we are even temples for the Holy Spirit. Our lives do not belong to anyone but God, as He purchased us with His own blood. We do not belong to our Mothers or Fathers or even ourselves. 

The way a baby is created inside their mother is a mystery still, even with all of our technology.

Ecclesiastes 5:11 As you do not know the way the spirit comes to the bones in the womb of a woman with child, so you do not know the work of God who makes everything.

The bible tells us that were are the work of God Himself. We are created for good works through Jesus. 

Ephesians 2:10 For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them.

We are told that we are not our own. We don't own our own bodies or anyone else's. Our bodies belong to the Holy Spirit as a temple for the Holy Spirit to dwell in to Glorify Him. This is our purpose on earth. 

1 Corinthians 6:19 Or do you not know that your body is a temple of the Holy Spirit within you, whom you have from God? You are not your own, 20 for you were bought with a price. So glorify God in your body.

Here is another site that answers the same questions with three more scriptures.

The Bible clearly points to conception as the beginning of human life. Samson said, “I have been a Nazirite to God from my mother’s womb” (Judges 16:17). He refers to his unborn self as having already been what God planned him to be—a Nazirite. David says, “You formed my inward parts; you knitted me together in my mother’s womb” (Psalm 139:13). Again, we see David referring to himself as a person in the womb. Then, he says, “Your eyes saw my unformed substance; in your book were written, every one of them, the days that were formed for me, when as yet there was none of them” (Psalm 139:16). David is saying that God had all of his days planned out for him while he was still in the womb. Again, this evidence points to personhood beginning at conception, rather than at the moment of birth. We see God had a similar plan for the life of the pre-born Jeremiah: “Before I formed you in the womb I knew you, before you were born I set you apart; I appointed you as a prophet to the nations” (Jeremiah 1:5).  source http://www.gotquestions.org/is-abortion-murder.html