But chances are Jools will have forgiven Oliver for this intrusion when she read the sweet message he wrote about her.
“@jamieoliver hacked mums Instagram account,” he wrote.
“Bless them both sleeping and exhausted together I can’t tell you what a wicked mum this chick is....”
”I had the best week off readjusting to the new family member a baby boy and I’ve loved every single minute,” Oliver continued in the post on Saturday 13 August.
“Everyone has grown and adjusted...
“Big love to all the mums out there it’s hard graft amazing.
“Happy weekend people and when Jools finds out I hacked her account all I can say is I love you joxxxxxxx”
Jools Oliver gave birth to the couple’s fifth child on Monday 8 August and they are yet to choose a baby name for their newborn.
She took back control of her Instagram account on Sunday 14 August to share a snap of her baby’s feet in bunny booties with the caption: “too much”.
The new baby joins big sisters Poppy, 14, Daisy, 12, Petal, six, and big brother Buddy, five.