Kurt Vonnegut, Jr., who's mostly known for his irreverent fiction, wrote a number of science fiction novels and stories in his early years (though some of his later fiction borders on science fiction as well).
The short story 2BR02B was originally published in 1962 in the magazine Worlds of If and never published anywhere since. Now it is available in an inexpensive paperback edition that is simple, but nicely done.
In the not so near future, long after humanity has recovered from 20+ billion people on the planet, disease and aging have been conquered and the people of the planet live in harmony with it and each other. And, now that the population of the United States has stabilized at 40 million souls, all living as long as they want, having a child requires for someone to voluntarily end their life at the Federal Bureau of Termination.
But, what is a father to do if his wife is now scheduled to have triplets?!?
2BR02B is a simple tale of a Utopian future where not everyone is perfectly satisfied.