Could she and Wayne be expanding their brood?

Update 18th August: Coleen just CONFIRMED she’s pregnant with her fourth baby! Read all about it here

Just over a year after welcoming her third son Coleen Rooney has sparked speculation she’s expecting again!

The 31-year-old was spotted in Cheshire this week wearing a tight-fitting black outfit, showing off a potential baby bump.

Adding fuel to the fire, Coleen recently celebrated her birthday at an Ed Sheeran concert and, in snaps uploaded to social media, appeared to avoid alcohol on the night.

MORE: Lucky Kai! Wayne Rooney’s son hangs out with One Direction

Other photos shared on social media recently show Coleen from the waist down or with her belly covered, so could she be trying to hide something?

Coleen and husband Wayne, also 31, are parent to sons Kit, one, Klay, three, and seven-year-old Kai, but she’s made no secret of the fact they’d love to add a daughter to the mix.

Coleen Rooney

Is Coleen expecting again?

Speaking previously to Now magazine about having more children in the future, Coleen explained: ‘You just to cope. You’ve got to juggle your time a bit better.’

MORE: Coleen Rooney shares adorable photo with her three sons

When asked if she’d like a daughter, Coleen added: ‘A girl would be nice because it would just complete the family.’

Thanks for all the lovely birthday messages yesterday. Had a lovely day and an amazing night at Ed Sheeran's concert 👭🎤💞🥂

A post shared by Coleen Rooney (@coleen_rooney) on

And, since having children, the Liverpool-born star’s priorities have definitely changed. Despite being one of the ‘original’ wags, Coleen insists looking good is not the first thing on her mind anymore.

‘You have your days when your hair’s a mess and you’ve got no time to get ready in the morning,’ she said. ‘There are time where I go and get my hair or make-up done for a night out and I feel nice within myself. But on a day-to-day basis, I’m quite a casual person. Your main priority as a mum is your kids.’