The 26-year-old singer-and-presenter is keen to expand her family with husband Marvin Humes but they are currently kept busy with their two-year-old daughter Alaia-Mai, reported Femalefirst.
"I've got my hands full with Alaia-Mai. Definitely in the long-term, I'd love to have more children. But we're not planning just yet."
Humes struck up a friendship with Simon Cowell's girlfriend Lauren Silverman when she was working on "The Xtra Factor", and their bond brought together Alaia-Mai and the music mogul's 22-month-old son Eric.
"Alaia-Mai had play dates with Eric at Boot Camp. I'm friendly with Lauren and she texted me suggesting we got together.