The model-turned-businesswoman became a mother for the fifth time on Monday, 4 August when she delivered a baby girl who has yet to be named.
Today, the starlet posted an image to her YouGossip channel showing her poor foot (and gorgeous pink pedicure) alongside the caption: "Soo swollen."
Yesterday, the 36-year-old gave fans the first glimpse at her baby girl when she posted a photo to YouGossip showing the tot clinging onto dad Kieran Hayler's fingers.
According to reports today, Kieran was by Katie's bedside and holding her hand during the Caesarean section on Monday.
There had been questions as to whether he'd be there given how rocky their relationship has been in recent months.
Katie was heartbroken in May when she learned Kieran, 27, had been having an affair with her best friend. The news broke shortly after she discovered her pregnancy.
After first vowing to divorce Kieran, the star now appears to be giving him a second chance.
Last month, she said on her Fubar Radio show: "If it happened again, absolutely he would be gone.
"I would never have wasted my time and effort if I thought deep down he was greedy and wanted sex elsewhere. I know about his past, there's lots of elements to it."
Katie and Kieran are also parents to son Jett, born last year. Katie has two other sons, Harvey and Junior, and a daughter, Princess, from previous relationships.
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Stars who welcomed babies in 2014:
Copyright: Rex Features WENN/Matthew Taylor/Daniel Deme/Josiah True/Matthre Taylor/Joe