Sen. Tammy Duckworth’s office announced Tuesday that she will give birth to her second child this spring, making her the first U.S. senator to ever give birth while in office.

“Bryan and I are thrilled that our family is getting a little bit bigger, and Abigail is ecstatic to welcome her baby sister home this spring,” she said in a statement. “As tough as juggling the demands of motherhood and being a Senator can be, I’m hardly alone or unique as a working parent, and Abigail has only made me more committed to doing my job and standing up for hardworking families everywhere.”

Sen. Duckworth — who is also a retired Army lieutenant, Iraq War veteran, and double-amputee — and her husband will welcome their new baby in April.

The Illinois Democrat’s first child was born while she served in the U.S. House, where she was 1 of just 10 women who have given birth while in office.