[Brookhaven]

Moreover, unless either the husband or wife is infertile, it is nearly impossible for a couple to only one child or no children unless contraception is being used.

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I won’t go into details here, but I know for a simple fact that is incorrect. There are any number of conditions that would cause a couple to become effectively infertile even though they already have a child.

[Mr Rogers]

“Moreover, unless either the husband or wife is infertile, it is nearly impossible for a couple to only one child or no children unless contraception is being used.”

I’ll add in with personal experience. My wife & I went 10 years without having kids. The only medical condition they could find was some mild endometriosis. We adopted 2 kids.

At 40, she became pregnant, and gave birth on time - although she was on modified bedrest for the last half of the pregnancy.

12 years later, still no more kids. So 1 kid, no attempts at contraception for 22+ years. And now we’re old enough to keep it that way!