Pregnant model Katie and estranged husband Kieran were pictured together outside a hospital on Saturday (31 May), although a source insisted it didn't mean a reconciliation was on the cards.
Katie, 36, was left heartbroken when she discovered Kieran, 27, had been having an affair with her close friend Jane Pountney, while she was pregnant with Kieran's second child.
On discovering the affair on 7 May, Katie sent a flurry of tweets branding Kieran "disgusting" and saying she was filing for divorce.
Over the weekend, however, she put her feelings to one side, allowing Kieran to accompany her to a hospital checkup .
A source told The Sun: "She is an emotional wreck. She absolutely hates what Kieran did to her and is trying to be strong about the end of their marriage.
"But at the same time, she's heavily pregnant with his baby and feels very vulnerable. Of course she wants him to be part of this process."
The insider said that Katie felt "mixed emotions" being around Kieran, and them being pictured together did not mean they are getting back together.
Katie's hospital visit was a routine check-up, as doctors keep an eye on her condition because of the amount of stress she has been under.
The mother-of-four has kept a low profile since the affair was discovered, focusing on the health of her unborn child and her family.
She cancelled plans for a lavish 36th birthday celebration last month in order to spent a quiet evening with her close family.
Katie was six months pregnant with Kieran's second child when she learned of his affair. They are also parents to son Jett, born last summer.
The couple married in the Bahamas in January 2013 after a whirlwind romance.
Last week, it was claimed that Katie had kicked Kieran out of their marital home. It was believed he'd previously been living in a separate residence on the property since the affair was discovered.
Kieran broke his silence on the affair on Katie's 36th birthday, pleading with her to give him a second chance.
"Happy birthday to my beautiful wife. I love you with all my heart forever and always. I will repair your heart and I am looking for the light at the end of the tunnel for our fairy tale ending. Believe in me xx."
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