Your point conflating wanted pregnancies to committed relationships is wrong, as not everyone in a monogamous committed relationship or marriage wants kids. I’m happy with my partner and have zero interest in meaningless, commitment free sex. And I have even less interest in having kids. There are zero circumstances under which a pregnancy would be wanted, or anything other than one of the worst things that could ever happen to me OR my partner, who is also childfree. Stop perpetuating the idea that sex is either for reproduction or meaningless pleasure, and nothing in between.