Stefani, 45, said she loves the constant element of surprise that has become a prominent trend in her life lately, reported People magazine.
"I think that's a theme for me right now because everything that seems to be happening are always things that I'm not planning on, like getting pregnant or doing The Voice and doing new music," she said.
Stefani says her focus is solely being a mother.
"We like to do things that are not super structured and not have a super plan about it - just hang out together and let the day be slower because everything goes by so fast," Stefani added.