Jessica Rosenberg, a technical writer in D.C., was excited to attend Sunday’s game at Nationals Park with her husband and 10-month-old daughter for what was fittingly themed Family Day.

It was her daughter’s second Nats game, and the trio arrived early to get lunch and feed their child.

Still, around the third inning, the daughter got hungry again, and so Rosenberg, wearing a nursing top, started breastfeeding her. “I don’t think too much about it,” she says. “When you have a kid, you realize they eat constantly.”

That’s when Rosenberg says a Nats staffer approached her to inform her that the stadium has a nursing lounge for mothers. Here’s Rosenberg’s account of what happened next: she told the staffer she knew about the nursing lounge, but was going to breastfeed at her seat. The staffer told her that another game attendee had complained about the breastfeeding, and asked Rosenberg repeatedly if she would consider using the nursing lounge. Rosenberg maintained that it was her legal right to breastfeed right where she was.

Rosenberg says that getting to the nursing lounge requires packing up the baby and going across the park, all while missing the game. “All of the people eating lunch [around me] aren’t going to a private place to eat,” she says.

The staffer relented, played with the baby, and then walked away.

“She left, and that was the end,” says Rosenberg. “But it really, and to my own surprise, put a damper on the entire day for me.”

As the Nats continued to rack up run after run, Rosenberg says that she couldn’t help but feel ashamed about the experience. “There’s something really humiliating about it—not knowing who it was [who complained], feeling watched and judged.” She says she turned to her husband and told him she wanted to leave early. They were gone by the top of the fourth inning.

On Monday, she sent an email to the Nats and made three demands: to train or retrain staff not to approach a breastfeeding mother; to affirm in the team’s rules and policies page that the team “acknowledges and celebrates a woman’s right to feed in public” (the page already mentions the nursing lounge, but Rosenberg would like language that says women may also feed their children elsewhere); and getting new tickets to make up for the game she felt was ruined by this experience. As of Thursday afternoon, she hadn’t heard back.

A spokesperson for the team did not dispute any elements of Rosenberg’s story. “The Nationals fully support mothers who choose to nurse in the ballpark—either in the nursing mothers lounge or in the stands,” the team said in a written statement provided to DCist. “The interaction with the fan did not follow our policy and we will be reaching out to her to apologize.”

Rosenberg says that she wishes the staffer had told the person who complained that women were allowed to breastfeed at their seats, rather than approach her. “To approach someone serves no purpose other than to shame them,” she says.

The District’s anti-discrimination law holds that a woman can breastfeed her child in any public or private location that she has the right to be.

“It is important for women who breastfeed to know that anywhere in D.C.—whether at a restaurant, a ballpark, or in the workplace—they have the right to feed their child or express their milk. Refusal to allow breastfeeding or expressing breastmilk could constitute unlawful sex discrimination in the District,” Mónica Palacio, the director of the D.C. Office of Human Rights, tells DCist in a written statement. “If an individual believes they experienced discrimination, harassment, or denial of service because they were breastfeeding or expressing breast milk in any private or public space, they can file a discrimination complaint.”

After more than a decade of decline, the total number of kids in D.C. began rising in 2011, according to District, Measured, a blog from D.C.’s Office of Revenue Analysis. The growth of the child population has compelled some establishments like restaurants to reconsider whether they want to be seen as family friendly.

But for some elements of parenthood, like breastfeeding, it is a matter of the law.