Catholic church’s stand on the ban of condom is not even based in the Bible.
According to the Catholic church that sex should be done only for the purpose of conceiving a baby, other than that it’s a sin.
But the bible says that sex between married couple can be done at the couple’s own discretion, no time or any thing should hinder them, but only give time to prayer. Just take a break for a prayer!
1 Corinthians 7:4-6
A wife belongs to her husband instead of to herself, and a husband belongs to his wife instead of to himself. So don’t refuse sex to each other, unless you agree not to have sex for a little while, in order to spend time in prayer. Then Satan won’t be able to tempt you because of your lack of self-control. In my opinion that is what should be done, though I don’t know of anything the Lord said about this matter.
(Contemporary English Version)