A few days ago I was discussing SF/Fantasy with unusual subject matter with a friend and he mentioned this short story.
I realized I had read it as well a long time ago, but neither of us can remember much detail about it.
We are hoping the unusual subject is trigger enough for someone to identify it.
We read it around 1990, give or take a few years, as a Dutch translation in a bundle of short stories. The story itself could be quite a bit older as Dutch publishing houses at the time often bought these short-stories in bulk from British and American publishers and it was usually not the newest material they got.
What we remember for certain:
The setting is a small town in a dystopian near-future. It's not really hardcore SF. We can't remember any mention of high-tech, etc.
For some reason in this nation almost all men are infertile. (Reason we can't remember, possibly war/bio-weapon.) The few men who are fertile work for the government and go around the country impregnating women.
They will approach a woman and have sex with her. This could happen at the woman's home, in the street, at work, basically anywhere even in public.
Main character is a woman in her 20's/30's who expects to be due soon for such a visit.
She worries about it. She is married and wonders how her husband will react if it happens. Will she like the sex. Would it be more like rape?
Some other points, that only one of us thinks to remember, we are not certain about these:
The town might be sea-side: I vaguely recall a sea-side boulevard or promenade being mentioned. For some reason I associate the setting with an English sea-side resort like Blackpool, Brighton or Torquay.
According to my friend the fertile men wear uniforms (including masks) that cover the entire body except for the genital area.
Neither of us can recall if the main character actually gets pregnant in the story.
It is not much to go on, but hopefully someone remembers it.