Miranda is said to have started having contractions in the early hours of this morning and was rushed to the hospital in Los Angeles to give birth.
A family member told Australia’s Herald Sun newspaper: “We did get a text on Boxing Day saying she had gone into labor but it was false alarm but I can confirm she did go into labor early this morning.”
Orlando and her parents, Therese and John, are believed to be with her.
She had previously said she wanted to wait until she gave birth to find out the sex of the baby, but she was recently spotted buying blue baby clothes while in LA.
Speaking about their plans to have a baby, she recently said, "For me, family is life. The decision to start one wasn't complex at all. My career has been wonderful, but it's not my life. I don't feel pressure to get back to work."
Can't wait to see their beautiful baby, congrats you two!