The Saturdays singer and her rugby player boyfriend Ben Foden have given us a glimpse of Aoife Belle for the first time in Hello magazine, and aren't they a cute little family?
However, the couple have revealed the "worst moment of her life" when Aoife started "forcefully" choking shortly after she was born last month.
Speaking of the health scare, Ben said: "We went into panic and pushed the emergency button and the next thing we knew, our baby was whisked away and there were alarm bells ringing and staff running around."
"I was screaming," Una added. "It was the worst moment of my life. There's this precious little person who you would die for and you just can't bear to think of anything happening to her."
Luckily, Aoife made a full recovery and everyone is now settling into family life.
"There hasn't been a dull moment since she was born, what with the feeding and the changing and the visitors and the hours we spend just gazing at her, taking in every little expression," Ben said.
"During the night, I'll wake up, even when she's sound asleep, and sneak a peek. She'll be lying there, with her tiny hands up by her face - she's so ladylike - and my heart could burst with love for her."
New mum Una is currently taking some time out from her commitments with The Saturdays, who have been promoting new single 30 Days as a four-piece.
Read the full interview in Hello! Magazine out now.