After laying low since the 7 May bombshell, the pregnant model told fans this morning that she's turning her focus back to work.
Katie tweeted: "Back to business for the Pricey today, great conference calls and exciting projects coming up."
While the 36-year-old is no doubt still reeling from cheating Kieran's affair, perhaps throwing herself back into work will provide some welcome distraction.
Katie was left heartbroken when Kieran and Jane's affair was finally confirmed to her on 7 May, following suspicions raised firstly by her sister Sophie, and then when Katie caught them locked in an embrace on holiday.
The cheating pair initially claimed it was simply a drunken kiss, but the truth came out in May, with Katie accusing Kieran of cheating on her for the past seven months.
Making it worse for Katie was the fact she's six months pregnant with Kieran's second child.
Their first child, Jett, was born last summer.
It's now believed that Kieran, 27, has moved out of their marital home and back in with his mum as Katie figures out what she wants to do next.
The mum-of-four has been vocal on Twitter about her heartbreak and disgust at being betrayed by both Kieran, her husband of more than a year, and Jane, a close friend who attended their wedding in January 2013.
Kieran, meanwhile, has pleaded publicly with Katie to give him another chance, saying his affair with Jane was nothing but "sleazy sex" and meant nothing.
Jane's husband Derrick, however, has claimed Jane was falling in love with Kieran.
Derrick and Jane are now divorcing.
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