Gwen Stefani's April Fool's joke has us all guessing!

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Are Gwen Stefani and Blake Shelton getting ready for a little arrival? The Used To Love You singer had everyone guessing whether she was expecting a baby with her boyfriend when she posted an ultrasound photo on Instagram, but not all was as it seemed.

The No Doubt star decided to have a little fun on April Fool's Day, posting a black-and-white image of a baby scan with the caption: "It's a girl gx."

It's a girl ❤️💕❤️gx

A photo posted by Gwen Stefani (@gwenstefani) on

Gwen played a little prank on April Fool's Day

Gwen's online joke comes after tabloids suggested she was pregnant with a "miracle baby" at 46, which Blake denied.

"I think it's awfully early to be talking about that, don't you?" he said in an interview with InTouch magazine.

Celebrity splits of 2015

The blonde bombshell is already mum to sons Kingston, nine, Zuma Nesta Rock, seven, and two-year-old Apollo Bowie Flynn, who she shares with ex Gavin Rossdale.

The former couple filed for divorce in August, while Blake divorced fellow musician Miranda Lambert in July after four years of marriage.

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Gwen and Blake confirmed they were dating in November 2015

Co-stars Blake and Gwen, who met while filming The Voice USA, confirmed they were dating in November following weeks of speculation.

During an interview with Ryan Seacrest, the Rich Girl hitmaker revealed that herself and Blake had bonded after going through their divorces at the same time. "To be super honest, it is kind of crazy we both went through the same thing at the same time," Gwen said.

"There's been so many people that I've gotten so much comfort from. Just people coming to me and telling me their story. Not confiding, but sharing, which has just helped me to see things from a different perspective and move forward."

Gwen and Gavin ended their 13-year relationship in August 2015, citing irreconcilable differences on their divorce papers. According to TMZ, the couple will have joint physical custody of their three sons, but will likely spend more time with their father because of Gwen's busy touring schedule.

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