The 31-year-old actress welcomed her first child, a daughter, into the world on Tuesday night at Los Angeles’ Cedars-Sinai hospital, according to TMZ.
The website reports the couple arrived at the medical facility at around 6am on Tuesday morning and were taken straight through to a delivery room.
After a lengthy labour, Mila gave birth on Tuesday evening.
According to TMZ, Ashton and Mila were alone at the time of the birth, and had arrived at the hospital without any entourage or their family.
The outlet also reports the birth was right on schedule, with the little girl making her big debut around the same time as the Jewish New Year.
It was recently claimed that 36-year-old Ashton was feeling more than a little nervous about Mila giving birth – mainly because he needs to get back to work filming TV sitcom Two and a Half Men soon.
“He is a nervous wreck," a source told People magazine last month. "They were hoping the baby would come this week because he's on hiatus [from his show Two and a Half Men].”
Actress Mila was said to be getting a little impatient in the final days of her expectancy as well.
"Mila just wants the baby to come out already!" the insider detailed.
Mila and Ashton met on the set of That '70s Show in 1998 but their friendship didn't develop into romance until 2012.
They got engaged in February this year.
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