"Miranda is doing well and Flynn is excited to be a big brother. Thank you for the kinds words and wishes during this very special time."
ET has reached out to Kerr's rep.
This is Kerr's first child with her husband, Snapchat CEO Evan Spiegel. She is already mom to 7-year-old son Flynn, whom she shares with her ex-husband, Orlando Bloom.
Kerr and Spiegel announced they were expanding their family in November. "Miranda, Evan and Flynn are looking forward to welcoming the newest member of their family," a spokesperson for the family shared at the time. Meanwhile, just last week, Kerr posted a stunning picture of her and her baby bump covering the May issue of Stellar magazine.
The gorgeous couple tied the knot in an intimate ceremony in Los Angeles last May, after meeting at a dinner in 2014 and announcing their engagement in 2016.
Earlier this year, the Australian model shared a funny story about how her son asked her if she was having a baby the day after she got married.
"Evan and I had been together for a while and he was like, 'When are we going to have another baby brother or sister?'" Kerr recalled on Jimmy Kimmel Live!. "And we were like, 'Look, we've got to get married first.'"
"So, the day after the wedding he comes running in and he's like, 'Mommy, is it in there?' I was like, 'Honey, give it a minute,'" she added.