"I just kept nursing the baby and thought maybe they can use the audio or something," she said.
But when she saw the video, she says she decided not to hide her motherly act.
"This is real life," she said. "I think so often women who run for office feel like they can only present a certain side of themselves to be taken seriously. But it's 2018 and I feel like the fact that I'm a mother just shows that I have an even greater motivation to make the state better."
Roys is a former member of the state assembly and currently runs a small business.
Her ad release comes a day after a Marquette poll showed the majority of the public doesn't know the Democratic candidates for governor well enough to even form an opinion.