Her first son, Kingston, is only a year old, but Gwen Stefani can't wait to have another baby. "Obviously I'm in a race to have another, but I don't want to do it while on tour," she tells In Style. "But I can't wait to get pregnant again. It's so fun and consuming and romantic." Gwen — and Kingston — will have to wait just a little bit for another addition to the family while they both travel the world on her Sweet Escape tour, which ends in November. "It's super-hard having a baby on tour, but super-fun," admits the superstar mom. "If I had to leave him at home and not bring him with me everywhere, then I wouldn't do this."