She started a blog about her journey in order to help other young cancer sufferers.
'I find it to be extremely helpful for myself to write things down and to anyone who is suffering any sort of cancer realise they aren't alone in this, and hopefully motivate them as well,' Hayley said at the time.
Health battle: The 25-year-old, who earlier this week revealed she was pregnant with farmer Will Dwyer's child, bravely battled cancer back in 2014
She added that she was keeping positive throughout her treatment and didn't want people to 'feel sorry for her'.
'I do not want anyone to feel sorry for me as I feel as though I am coping extremely well,' she said.