Lisa Curry's daughter Morgan Gruell shows off her growing baby bump after announcing she's expecting her third child with husband Ryan Gruell

Morgan Gruell revealed she's expecting her third child with husband Ryan Gruell on Sunday.

And the Pilates instructor, 31, showed off her growing baby bump in a mirror selfie on Tuesday.

Morgan, who is Lisa Curry and Grant Kenny's daughter, shared a picture to Instagram while gently stroking her belly.

New addition: Lisa Curry's daughter Morgan Gruell showed off her growing baby bump after announcing she's expecting her third child with husband Ryan Gruell

New addition: Lisa Curry's daughter Morgan Gruell showed off her growing baby bump after announcing she's expecting her third child with husband Ryan Gruell

'13 weeks and already sporting a decent bump,' she captioned the post.

'Some changes are getting made to the nursing t-shirt dress but I think this will be a go to during this pregnancy!'

On Sunday, Morgan shared a sonogram to Instagram and revealed her baby, whose gender she is yet to reveal, is due at the end of May.

'Life is crazy - we might as well stay in the crazy! Baby #3 due end of May!' Morgan captioned the sonogram.

New mum: Morgan shared a picture to Instagram while gently stroking her belly

New mum: Morgan shared a picture to Instagram while gently stroking her belly

Morgan also shares sons Flynn, three, and Taj, one, with Ryan.

Her pregnancy announcement comes after she commemorated one year since the death of her sister Jaimi Kenny (Lisa Curry and Grant Kenny's daughter), who passed away at age 33.

Jaimi suffered from alcoholism, depression and an eating disorder prior to her death.

Lisa was joined by her surviving children, Morgan and Jett Kenny, 27, and her husband, Mark Tabone, as she threw flowers into the ocean to honour Jaimi.

Baby on the way: On Sunday, Morgan shared a sonogram to Instagram and revealed her baby, whose gender she is yet to reveal, is due at the end of May

Baby on the way: On Sunday, Morgan shared a sonogram to Instagram and revealed her baby, whose gender she is yet to reveal, is due at the end of May

Growing family: Morgan and her husband, Ryan are already proud parents to sons Flynn, three, and Taj, one (all pictured)

Growing family: Morgan and her husband, Ryan are already proud parents to sons Flynn, three, and Taj, one (all pictured) 

Lisa announced Jaimi's death in a social media post on September 15 last year, one day after her passing.

'Our beautiful daughter Jaimi has lost her battle with a long-term illness and passed away peacefully in hospital yesterday morning with her loving family by her side,' she wrote. 

For confidential support in Australia, call Lifeline on 13 11 14 or visit www.lifeline.org.au. Alternatively, call Kids Helpline on 1800 55 1800

Her pregnancy announcement comes after she commemorated one year since the death of her sister Jaimi Kenny (pictured)), who passed away at age 33

Her pregnancy announcement comes after she commemorated one year since the death of her sister Jaimi Kenny (pictured)), who passed away at age 33 

Morgan Gruell shows off her growing baby bump as she prepares to welcome her third child

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