The pop star was spotted at a Disney Junior Live On Tour! event in Hollywood with her son Zuma and her niece Stella, where she donned a fashionably loose tank top over her skinny jeans.
She also wore a pair of eye-catching red Doc Marten boots with a heel, as well as sporting matching red lips and nails.
Meanwhile, 5-year-old Zuma looked just as cool as his mum in a pair of his own boots, which were teamed with faded jeans and a sleeveless red shirt.
Stella looked particularly cute for the day in a patchwork dress, ballet pumps and a blue crown. She even had very own mini handbag - aww!
Earlier this year, rumours emerged that 43-year-old Gwen was expecting her third child with rock star Gavin Rossdale (the couple have another son, Kingston), but both musicians have refused to comment on the speculation.
However, while Gwen's lips have remained sealed, her friend and fellow artist Eve appeared to confirm that a baby was on the way in an interview with Live Nation.
When asked whether the No Doubt singer would be joining her at an upcoming gig, Eve replied: "She's preggers. I think she's chilling."
Could Eve be right? Or does Gwen just have a penchant for loose fitting clothing? We can't work it out!
What do you think of Gwen's red boots? Let us know below, as the best comment each week wins £50!