WASHINGTON (CNN) - At 8:30 a.m., Kirsten Gillibrand looks like any other working mom in a minivan dropping off her baby boy at day care and her other son at school.
But one hour later, she is gaveling the United States Senate into session.
Sen. Gillibrand, D-New York, is part of a different kind of "change" in Washington - a baby boom among female lawmakers.
She had her son Henry 11 months ago, when she was serving in the House of Representatives.
"I think it makes me and the other women better legislators, because we really understand some of the struggles that other moms and other families have," Gillibrand said.
Rep. Stephanie Herseth Sandlin, D-South Dakota, had her first baby, Zachary, 5 months ago.
Even though she's a member of Congress, she has to wait her turn on a waiting list with other Capitol Hill employees at the congressional day care center, which is at capacity. Until he can get in, Henry usually spends his days with a nanny or family.