[quote="PMAC27, post:1, topic:212907"]
I am Catholic, my wife is Muslim, and we have been married four years. For the past four years we have used contraception without realizing how grave of a sin it actually is. About 6 months ago I revived my faith and started educating myself on the Church's teachings.
After gathering my facts, I approched my wife about changing to the NFP method and she does not want to even consider it. She does not feel that using contraception is sinful and feels that I am pushing my Catholic agenda on her. This has resulted in 2 months of refraining from having relations which is really putting a strain on our marriage.
Side note: We have an 8 month old daughter, my wife's pregnancy and her labor were very difficult on her. She does not want another child anytime soon, if ever.
The answers I've heard given to this on the radio from well educated people is that you re not obligated to abstain from having relations with her. In fact doing that can damage the marriage in multiple ways. Even though using NFP is immoral, so is withholding sex for the purpose of manipulation. This gives her an experience that Catholicism has turned her husband into a man who rejects her sexually and insists that, in her mind, she become a baby making machine. In her mind this is demeaning and unloving.
First of all, I would apoligize to her from withholding sex from her and talk opening about how that has made her feel about you and about Catholicism. Focus on loving her where she is at. Express to her that you really do not want to violate the morals of your faith and come to a compromise. The contracepted sex is against your will. Since there is no full consent of your will, it cannot be a mortal sin. Its just like if a woman is raped. It is not a mortal sin because she did not consent to the sexual activity.
What you need to do is pray for her soul. During a good moment where she's feeling loved and not threatened, ask her if she'd be willing at all just to take an informative class on NFP. Then pray pray pray. Then perhaps slowly and without pressure she will come to be open about NFP. However, by withholding sexual expression in your marriage, she will more than likely go in the exact opposite direction.