Throughout the American workplace, pregnancy discrimination remains widespread. It can start as soon as a woman is showing, and it often lasts through her early years as a mother.

Earlier this year, the New York Times reviewed thousands of pages of court and public records and interviewed dozens of women, their lawyers and government officials. A clear pattern emerged. Many of the country’s largest and most prestigious companies still systematically sideline pregnant women. They pass them over for promotions and raises. They fire them when they complain.

In physically demanding jobs — where an increasing number of women unload ships, patrol streets and hoist boxes — the discrimination can be blatant. Pregnant women risk losing their jobs when they ask to carry water bottles or take rest breaks.

In corporate office towers, the discrimination tends to be more subtle. Pregnant women and mothers are often perceived as less committed, steered away from prestigious assignments, excluded from client meetings and slighted at bonus season.

Each child chops 4 percent off a woman’s hourly wages, according to a 2014 analysis by a sociologist at the University of Massachusetts, Amherst. Men’s earnings increase by 6 percent when they become fathers, after controlling for experience, education, marital status and hours worked.

The article noted a study conducted by Shelley Correll, a Stanford sociologist, presented hundreds of real-world hiring managers with two résumés from equally qualified women. Half of them signaled that the candidate had a child. The managers were twice as likely to call the apparently childless woman for an interview. Ms. Correll called it a “motherhood penalty.”

In my practice I have noticed a steady rise in pregnancy discrimination cases over the last 20 years as women increasingly are willing to fight for their seat at the employer’s table. I have two daughters myself and, frankly, had really hoped that they would not have to deal with these issues. Sadly, I know they the odds are they might.

We’ll keep fighting.

Followup: Read the entire New York Times article here.

Learn more about pregnancy discrimination laws here.