Louise Redknapp said Jamie wanted another baby when she was on Strictly Come Dancing.
Months after her Strictly Come Dancing stint, the couple ended their 19-year marriage for good in 2017.
Now Jamie is expecting a baby with his new Swedish model girlfriend Frida Andersson which has reportedly left Louise "knocked sideways".
Back in 2016, Louise revealed Jamie wanted another baby when she starred on Strictly Come Dancing.
They had both had hopes of having a baby girl.
Previously, her Strictly partner Kevin Clifton danced with both Frankie Bridge and Kellie Bright who went onto get pregnant after the show ended.
At the time, Louise told The Sun: "Two of [Kevin Clifton's] previous partners have got pregnant after the show. Bring that one on.
“Maybe he’s the good luck charm I need to get that girl I really want.
“Jamie would love another baby, I’m not getting any younger so we’ll see what happens. But I’m in Strictly shape now so we’ll see.”
Louise and Jamie co-parent their sons Charley and Beau who divide their time between their parents.
It's said Louise found out through family and Jamie didn't tell her directly about his baby joy.
"Louise was knocked sideways by the news. Jamie didn't tell her directly, she found out through family," a source told OK! magazine.
"She's happy for them both and says life goes on but at the same time, she's shocked by how quickly he's moved on and that he'll be a new dad again at nearly 50.
"A new baby is always a joy but she is concerned at how it will impact their family dynamic."
The Mirror has reached out to Louise Redknapp's representatives for further comment.
Jamie will have his third baby with his girlfriend Frida and their first child together will be her fifth.
Frida has four sons of her own whom she raises with her ex-husband Jonathan Lourie.
The happy couple have since broken cover after the baby news was in a storm of headlines.
Already the stunning model has liked and responded to many congratulatory messages from fans on her Instagram in recent days.
They have yet to share a statement or announcement in their own words.
It's understood Jamie's parents Harry and Sandra knew they were among the first to know they were going to be grandparents.
Harry broke his silence to share his delight about his son's baby news.
He told TalkRadio: "I'm really pleased, it's good news and looking forward to that, it's exciting times."
Harry added: "I enjoy spending time with the grandkids, I enjoy going down to watch them play football or whatever they're playing.
"I like taking them to the football on a Saturday."
