Scripture has no comment of any type anywhere regarding contraception. (Please note that "Abortion" is NOT contraception!)

The teaching that God prohibits contraception comes from a total misunderstanding of Genesis 38:6-10.

Judah got a wife for Er, his firstborn, and her name was Tamar. Now Er, Judah’s firstborn, was evil in the Lord’s sight, and the Lord put him to death. Then Judah said to Onan, “Sleep with your brother’s wife. Perform your duty as her brother-in-law and produce offspring for your brother.” But Onan knew that the offspring would not be his, so whenever he slept with his brother’s wife, he released his semen on the ground so that he would not produce offspring for his brother. What he did was evil in the Lord’s sight, so He put him to death also.

What was the "evil" that he did? Was it coitus interruptus, as has become a Doctrine within some Christian churches?

No. What he did that "was evil in the Lord's sight" was refusing to fulfill his familial duty to his deceased brother's wife. This is clearly understood when scripture states that "Onan knew that the offspring would not be his". He did not want to father a child that would not be his, so he refused to impregnate Tamar, but he did go ahead and have sex with her.

The evil was in refusing one's duty!

To teach that "coitus interruptus is a sin" is a gross misrepresentation of scripture, and to make that a Doctrine binding upon man is a serious error.