The 9News presenter announced she was pregnant on Weekend Today last September, telling her colleagues on-air: "Trent and I are expecting a little boy which is very exciting."
"It's weird talking about it," she confessed. "It's lovely news, we're both very happy."
The star went on to admit conceiving had not being easy for her and Trent, who works as a cinematographer.
'I know there will be people watching that may be struggling to conceive or have experience of loss themselves,' Jayne said.
'I know they'll be happy for me, but I also know that it can be extra painful with someone else announcing happy news.
'I hope that everybody else gets their happy announcement.'