The 40-year-old star, who raises the kids with Coldplay frontman Chris Martin, is considering planning one final addition to their family, even though she knows it wouldn't be sensible at her age, reported Daily Mail.
"My brain says, 'Oh, I think I'm done, the kids are big now and I don't want to go back to changing diapers'. But a part of me would love to have another. Of course, I'm old now," she said.
The 'Iron Man' star loves being a mother and says she relates to both her children differently, especially since she suffered from bad post-natal depression when Moses was born.
"When Apple was born, she had the hugest blue eyes. I looked into them and she was looking at me, and I felt like, 'You are here to teach me everything'. After Moses was born, I had postpartum depression. It was a difficult time and because of that, I believe I have an extra empathy for him and he for me," she added.