Antonia, who turned 40 on Wednesday, is due to give birth to her fifth child, her first with her new husband, Craig Marran, in January.
Antonia has told Who magazine she and Marran are thrilled to be expecting a child together.
" It's something we wanted, as Craig doesn't have any children," Antonia told Who.
"It's a beautiful thing that I wanted to go through with him, and it's a unique journey for us, and for the children, too. Craig is completely over the moon."
Antonia has four children - Lucia, 11, Hamish, 9, James 7, and Sybella, 3 - with her former husband, Angus Hawley.
She and Marran, while based in Singapore, are planning for their baby to be born at Sydney's Royal Hospital for Women, where her other children were delivered.
FILM favourite Nicole Kidman is to become an aunty again, with her sister Antonia confirming she is pregnant.
Antonia, who turned 40 on Wednesday, is due to give birth to her fifth child, her first with her new husband, Craig Marran, in January.
Antonia has told Who magazine she and Marran are thrilled to be expecting a child together.
" It's something we wanted, as Craig doesn't have any children," Antonia told Who.
"It's a beautiful thing that I wanted to go through with him, and it's a unique journey for us, and for the children, too. Craig is completely over the moon."
Antonia has four children - Lucia, 11, Hamish, 9, James 7, and Sybella, 3 - with her former husband, Angus Hawley.
She and Marran, while based in Singapore, are planning for their baby to be born at Sydney's Royal Hospital for Women, where her other children were delivered.
