Pink "doesn't know" if her daughter would like a brother or sister and thinks she would be a "violent" sibling.
The Just Give Me a Reason hitmaker - who is married to motocross star Carey Hart - is unsure whether three-year-old Willow would like to have a younger brother or sister because she enjoys being in the spotlight so much.
Asked if she thinks her daughter would like a sibling, Pink said: "I don't know if she would. I think she really enjoys being the centre of attention... I see siblings that are kind of violent toward their younger ones, and I feel like that might be the way she goes with it."
Pink thinks her daughter is already showing strong signs of being like her "reckless" father.
She told Extra: "She's a maniac, she's an absolute maniac which is all her dad's fault. I am physical, but I'm cautiously physically. Carey is reckless and Willow is taking after him.
"I'm like, 'Oh my God, she fell, she has a splinter' and Carey's like, 'Well, it was only 10 stairs'. That's the difference between us."
Meanwhile, despite her rebellious image, the 34-year-old singer insists she is a "homebody" who loves being in her garden and creating icy treats for her family.
Asked what she is working on at the moment, she said: " I'm working on a garden, I'm a homebody. I'm learning how to make homemade popsicles at the moment."
