All of Christianity was opposed to contraception until 1930. That is when the traditions of men became more important than the word of God.
The Catholic, Orthodox and some other religions were opposed, but that's a far cry from all of Christianity being opposed.
God's word never implies that the possibility of childbearing is the only thing that legitimizes sexual relations between husband and wife.
Obviously, all contraception is not moral. I agree that any methods that are abortive are immoral.
I applaud your faith, but urge you not to harshly judge those who view some things differently than you. We have one judge. See Romans chapter 14.