Three times God clearly told mankind to be fruitful and multiply. He has never taken that command back.   

“And God blessed them, and God said unto them, Be fruitful, and multiply, and replenish the earth, and subdue it: and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth” (Genesis 1:28).

“And God blessed Noah and his sons, and said unto them, Be fruitful, and multiply, and replenish the earth” (Genesis 9:1). 

“And you, be ye fruitful, and multiply; bring forth abundantly in the earth, and multiply therein” (Genesis 9:7). 

No wonder there is such an attack on the innocent, defenseless unborn.