The 34-year-old music artist has known Gwen for a number of years and most famously collaborated with the No Doubt singer on her hit single 'Let Me Blow Ya Mind' in 2001.
However, their friendship didn't stop Eve from letting slip Gwen's baby news - something that the songstress has yet to confirm herself.
During a recent interview with Live Nation, Eve sounded adamant about the pregnancy rumours being true. Does she know something we don't?
When asked whether Gwen would be joining her on stage at an upcoming gig in New York, the rapper responded: "She's preggers! She's preggers! I think she's chilling."
We guess if the news is true, Eve wasn't sworn to secrecy when she was told!
Gwen, 43, and husband Gavin Rossdale have so far remained tight lipped over the speculation that she is expecting another child and have been spotted out and about over the last week or so, getting on with their regular routine.
Rumours began circulating earlier this month, with a source revealing to Us Weekly that the couple are "excited" to be having a baby.
The 'Rich Girl' star and her rocker hubby are already parents to two boys: Kingston, 7, and Zuma, 5.