I had a friend whose husband argued this when they were deciding who would get what surgery to keep from having more children. He did the "but what if you die, dear, and I want children with the second wife" which...

She ended up getting a hysterectomy and was out for months. And then two years later he died of a heart-attack, leaving her a relatively young widow (in her thirties, they married pretty young) with no chance of more children.

Sooooo I deeeeeply LOLZ at the guys who are all "but what if she dies and I want more kids". Mate, if your dick is fucking sacred to you, then just admit it's fucking sacred to you and be done with it.