The singer gave birth to son Kingston in May this year and said she loves nursing her baby.
Gwen told the USA Today newspaper: "I'm still nursing, and I think it gives you superhuman powers." The former No Doubt singer toured until she was four-and-a-half-months pregnant and is already back on the road promoting her single 'Wind It Up' but says Kingston is enjoying going to work with her.
She added: "There's this huge team of us always hanging out together, so he gets to see the same people every day. And he's this very cool, chilled-out little guy. He's just like another person, except that he's super-cute and super-entertaining.
"Getting my figure back was one of the hardest things for me - the pressure of, 'OK, I need to get into shape so that I can put this record out.' If I didn't have that pressure, I don't think I would have gotten the baby weight off so quickly." But 37-year-old Gwen also hinted she may quit music to have more children with her husband, 41-year-old rocker Gavin Rossdale.
She said: "I pray that I can have another baby.
"It's such a miracle to have one. And there's so much I still want to do, because who knows? Things could be a lot harder a few years from now. I mean, I'm not at the beginning of my career. I'm on a ticking clock. And I don't want to miss anything."