Barnaby Joyce's young lover Vikki Campion was engaged to her long-term boyfriend a year before she fell pregnant to the deputy prime minister.
Ms Campion, 33, was to marry journalist John Bergin in November 2016 but the couple split about August that year, shortly after Mr Joyce was re-elected to the seat of New England.
Ms Campion worked for Mr Joyce from May 2016 until May last year. She fell pregnant to the National Party leader a couple of months later, about a year after she and Mr Bergin parted ways.
Mr Joyce, 50, has left Natalie, his wife of 24 years, and set up home with Ms Campion.
Barnaby Joyce's lover Vikki Campion pictured wearing an engagement ring in May 2016
Barnaby Joyce's pregnant lover Vikki Campion was engaged to journalist John Bergin (above)
Vikki Campion (left) is pregnant with Deputy Prime Minister Barnaby Joyce's (right) fifth child
Journalist John Bergin (above) was engaged to marry Vikki Campion in November 2016
Mr Bergin, 38, is a highly-regarded journalist, editor, digital strategist, communicator and project manager.
He was the managing digital editor for news and current affairs at SBS for three years until September 2016.
The former private schoolboy has worked for other Australian media companies including Sky News Australia, where he was director of digital news.
Mr Bergin and Ms Campion were in a relationship for several years before their engagement ended, shortly after Mr Joyce was re-elected to Parliament on July 2, 2016.
They had been due to be married at Bowral, in the New South Wales Southern Highlands on November 5, 2016 and set up a wedding registry for the big day.
Daily Mail Australia has published pictures of Mr Joyce and Ms Campion enjoying each other's company in a Sydney bar on February 23 last year, six months after her split from Mr Bergin.
Vikki Campion, 33, (above) is about seven months pregnant to Deputy PM Barnaby Joyce, 50
Former digital news director at Sky News Australia John Bergin was engaged to Vikki Campion