According to The Sun, part-time stripper and plasterer Kieran was by Katie's side as she delivered their second child on Monday via an emergency Caesarean.
Katie and Kieran's marriage has been contentious over the past few months since she discovered he'd been having an affair with her best friend Jane Pountney.
At the time, a heartbroken Katie vowed to divorce Kieran but in recent weeks she appears to have reversed that decision and seems willing to give their relationship another go.
She gave birth to their daughter, who has yet to be named, on 4 August. Before the birth, sources had said she wanted Kieran in the delivery room with her to offer support and, according to The Sun, that's just what happened.
A source said: "Kieran proved himself to Katie over the last week. He was dressed in scrubs for the operation and she loved it. She joked that the last time he was in clothes like that was for a stripping routine."
This is Katie, 36, and 27-year-old Kieran's second child together. Their first son, Jett, was born in France last August.
Katie has claimed that Kieran's affair with Jane began during that French holiday, accusing them of sleeping together while she was in hospital waiting to give birth.
Now, however, it seems Katie and Kieran are trying to patch things up.
The insider told the paper when the baby was delivered, Kieran began crying. "[Katie] feels like the birth of his daughter has made him see the light," added the source.
So far, neither Katie nor Kieran has made any public comment on their new arrival, whose birth was confirmed by Katie's rep.
Yesterday, however, former glamour model Katie did give fans their first glimpse at Baby Price Hayler via a photo posted to her YouGossip account.
The picture showed the baby's tiny hand grasping onto one of Kieran's fingers. The caption read: "Daddy's little girl."
Perhaps a sign that things are looking up?
The baby's birth on Monday meant that Katie was (understandably) absent from her weekly Fubar Radio slot the following day, but co-host Mark Dolan made sure to give the new mum a shout-out on air.
In a special message, Mark told listeners: "I would like to wish Katie Price, my fabulous co-host, our very best wishes for arrival of a brand new little girl. We're delighted. It's the dawn of a new era. This is just what the world needs, a little Katie Price running around causing havoc at nursery. Well done, you've done it again!"
Katie is also mum to sons Harvey and Junior and daughter Princess from previous relationships.
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