The mother-of-five - who threatened to divorce the former stripper earlier this year after discovering he had cheated on her with two of her pals - took to her YouGossip site to post a picture of the couple's newborn daughter and admitted the pair are ''so in love'' with the little one.
She wrote: ''Me and kieran are so in love with our gorgeous little miracle baby girl it's complete our family :)))))))) (sic)''
The 36-year-old star gave birth to her and Kieran's second child together last Monday (04.08.14), two weeks early, and Katie admitted she is missing her baby bump.
In a message attached to a naked picture of her taken shortly before she gave birth, she wrote: ''Last picture of my bump last week missing her little kicks (sic)''
Katie also appeared to pay tribute to Kieran - who is undergoing therapy for sex addiction - for not leaving her in favour of one of her friends, Jane Pountney or Chrissy Thomas, who he had an affair with.
She posted a picture of a message which read: ''People come and people go. The best will stay.''
Another read: ''One of the happiest moments in life is when you find the courage to let go of what you can't change.''
Katie - who also has 11-month-old son Jett with Kieran, and 12-year-old Harvey, nine-year-old son Junior and seven-year-old Princess from previous relationships - has vowed to stick by Kieran while he undergoes therapy.