Congratulations are in order: Hilary Duff has welcomed her first child with boyfriend Matthew Koma!

The 31-year-old Younger star announced the birth of their daughter on Monday evening with a sweet Instagram post revealing the newborn’s name and birth date. “Banks Violet Bair," she wrote. "[T]his little bit has fully stolen our hearts! She joined our world at home on Thursday afternoon and is absolute magic."

Duff first announced her pregnancy in June with a similarly loved-up shot of her and Koma, 31. “Guess what guys! @matthewkoma and I made a little princess of our own and we couldn’t be more excited!!!!!!” she captioned the shot.

While Banks is Koma’s first child, Duff is a mother a second time over. The former child star shares a 6-year-old son, Luca, with her ex-husband, hockey player Mike Comrie.

Duff shared much of her second pregnancy with her more than 10 million followers, documenting every, uh, bump along the way.

Congratulations, you two!