According to TMZ, the Australian model gave birth on May 7, E News reports.
Kerr and her Snapchat founder husband first announced they were expecting a child together back in November.
“Miranda, Evan and Flynn are looking forward to welcoming the newest member of their family," a spokesperson said in a statement.
The couple, who first announced their engagement in July of 2016, wed in a private ceremony on May 27th 2017.
34-year-old Kerr already has a 7-year-old son Flynn, whom she shares with her ex-husband Orlando Bloom.
Luckily, Flynn seems ultra-keen to become a big brother: in February, Kerr revealed on Jimmy Kimmel that he’d asked where his new sibling was the day after the supermodel tied the knot with Speigel.
“He’s so excited that Evan and I had been together for a while and he was like, ‘When are we going to have another baby brother or sister?’ And we were like, ‘Look, we’ve got to get married first,'" she told Kimmel. “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!'"
Fortunately, the time has come! Congrats to the happy family of four.
More details (and hopefully photos!) to come.