Hot and Cold Blood by F. Scott Fitzgerald

The incident and the unpleasantness were forgotten. Mather's vast good nature had smoothed over the roughness within an hour. References to it fell with a dying cadence throughout several days -- then ceased and tumbled into the limbo of oblivion. I say "limbo," for oblivion is, unfortunately, never quite oblivious. The subject was drowned out by the fact that Jaqueline with her customary spirit and coolness began the long, arduous, up-hill business of bearing a child. Her natural traits and prejudices became intensified and she was less inclined to let things pass.

It was April now, and as yet they had not bought a car. Mather had discovered that he was saving practically nothing and that in another half-year he would have a family on his hands. It worried him. A wrinkle -- small, tentative, undisturbing -- appeared for the first time as a shadow around his honest, friendly eyes. He worked far into the spring twilight now, and frequently brought home with him the overflow from his office day. The new car would have to be postponed for a while.