After spending a week in hospital, Lennox, affectionately known as 'Lenni' to his parents, was born on February 29 after an intense seven-hour labour.
Lennox spent four months fighting for his life as his parents balanced looking after three other children from previous relationships.
He was born with a hole in his heart and may need laser surgery because his eyes had not developed fully.
Lennox, who now weighs 3.5 kilograms, also had trouble breathing and had numerous blood transfusions.
Ms Munro and her fiance, Brodie Moles, had to stop working because the couple had to drive to the hospital every two hours to deliver her breast milk to make sure Lennox had the best fighting chance as it would boost his immunity.
While the young mother was at hospital, Mr Moles became their children's full-time carer instead of going to his construction job.
On top of that, the couple did not have anywhere to stay overnight to be with Lennox because the public hospital system was 'so financially stretched'.
At home, the young mother was unable to eat, sleep and stop crying for her baby boy.
Unable to go to work, the couple also fell behind with their bills and rent.
Read more: http://www.dailymail.co.uk/news/article-3655509/Melbourne-mother-unable-work-four-months-look-premature-baby-boy.html#ixzz4CPnUOES7
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