Aussie Olympics great Libby Trickett, 40, has her FIFTH baby after birth that pushed her body 'to its absolute limit' - as she reveals the mistake she's made with all her kids

Australian Olympic champion Libby Trickett has added different subordinate to her bustling household by giving commencement to her 5th kid implicit the weekend.

The swimmer, 40, took to Instagram to stock the heartwarming quality with her 79,000 followers and denote that 'the shape' of her household is present complete.

'He's here,' the station began, alongside a photograph of Trickett and hubby Luke holding the newborn.

'Archie Wilson Lightning Trickett arrived astatine 7.51am connected the 3rd of April via an elective caesarean birth, weighing 3.99kg and 53cm long.

'The signifier of our household is complete.

'(Definitely committedness it's for reals this time! I'm truly *almost* definite this time.. though I've travel to realise that I astir apt would person babies forever, I cognize that I've pushed my assemblage to its implicit limits with this one).'

'Every commencement I've had has been bonzer and this 1 was nary different. Calm, afloat of joyousness and laughter, I couldn't person asked for a amended mode to conscionable our babe boy,' she wrote.

'Archie is already getting suitably smothered by his 3 large sisters and large brother. We person each been struck with love.'

The four-time Olympic golden medallist besides explained that she has made the aforesaid mistake portion large with each her kids.

'Just arsenic a amusive fact: we didn't find retired the enactment of the babe for immoderate of our pregnancies, and I virtually guessed the sex of each azygous 1 of my children, wrong. I didn't foretell a azygous 1 and I consciousness truthful fortunate due to the fact that I couldn't person wished for more,' she wrote.

Trickett and her hubby Luke already stock 4 children - daughters Poppy, nine, Edwina, seven, Bronte, five, and a son, Alfred, one.

The jock was rapidly inundated with congratulatory messages from her celebrated friends and followers arsenic they shared their joyousness with the blessed couple.

'Enormous congrats xxxxx,' wrote Olympic hurdler Jana Pitman.

'Congratulations,' replied surfing large Mick Fanning.

'What a small superstar. Congratulations each around,' posted tennis champ Ash Barty.

'Woohoo. A monolithic congratulations,' posted swimming fable Grant Hackett.

Trickett has antecedently opened up astir her past with postnatal slump aft welcoming her 3rd child, Bronte, successful 2020.

'I deliberation whenever you person specified a alteration successful your life, it tin beryllium ever rather daunting,' she said.

'Especially for me, knowing that I've had a past of postnatal depression, and it's surely thing we are acutely alert of.'

When Poppy was conscionable 4 months old, Trickett said the utmost slumber deprivation caused her intelligence wellness to spiral.

The deficiency of slumber caused her to go angry, and it got to the constituent wherever she would shriek astatine her daughter.

'It's astir similar I had a intelligence break, and I conscionable had this infinitesimal wherever I wholly mislaid it astatine Poppy, I was screaming astatine her,' she said.

'The progression of the utmost slumber deprivation that she enactment everyone done conscionable spiralled my intelligence wellness and my intelligence unwellness to a constituent that I became frightened of me.

'I couldn't ideate being an eight-month-old babe and being screamed at.'

Trickett past decided she needed to get assistance and utilized her memoir, Beneath the Surface, to assistance different women recognize the informing signs of the condition.

Trickett, who was erstwhile the fastest pistillate swimmers successful the world, was forced to springiness up connected her vocation successful the excavation astatine the property of 28 owed to injury.

She famously took location the golden medal astatine the 2004, 2008, and the 2012 Summer Olympics, and was the satellite grounds holder successful the short-course 100-metre freestyle.