Una and Ben Foden are expecting a baby boy.
The Saturdays singer says she was "taken aback" upon learning she'd be giving birth to a brother for her and Ben's two year old daughter Aoife Belle, but the rugby player has been convinced since the star that they'd have a son.
Una and Ben Foden
Una explained to HELLO! magazine: "Ben was adamant from the moment we knew we'd conceived again that we were having a boy.
"I was convinced I was carrying a girl, mainly because this pregnancy is so similar to last time.
"I was actually a little bit taken aback when we found out we were going to have a son. But now I'm over the moon and can't wait to meet our little boy."
The singer also laughed off speculation she and the other members of The Saturdays were now going to go separate ways after some of the group began work on solo projects.
"If that was what we wanted, we would be honest about it and say so.
"We're always going to be The Saturdays. None of us wants the group to end. So while we'll go off and do our own things, it will always be in conjunction with what The Saturdays have going on. We're definitely not splitting up."
Meanwhile, Ben revealed his daughter's excitement at the prospect of becoming a big sister.
Aoife knows something's going on.
"Una shows her her tummy and tells her there's a baby in there and she kisses it.
"She sort of understands. She's really good with other kids. I think she's desperate to have a brother or sister to play with."
Tagged in The Saturdays Ben Foden Una Foden