
The pregnant mum-of-three said she is thrilled with the news.
"Little girls have been so on my radar, I see them with pigtails and frilly socks with their mums and I still can't believe I'm having a mini-me," she said.
The Big Reunion and former Atomic Kitten star said she had an inkling she was carrying a girl.
"I knew in my heart because of how different this pregnancy was, but I pushed the thought aside because I didn't want to tempt fate. I thought it would never happen," the 31-year-old said.
Former 5ive singer Ritchie is equally thrilled with the news his first child is a daughter saying, "They say only real men can make daughters."
"I was shell-shocked and like: 'Oh s***, I'm going to have to be an extra protective dad. What if she brings an idiot back when she's 18?' A boy was going to be a lot easier – what am I meant to do with a girl?" he said.