But whatever happened, the former Strictly Come Dancing professional has since reunited with Ben, and couldn't have looked happier when quizzed about him during last night's Bit On The Side.
When host Rylan Clark-Neal asked Kristina if she'd met up with Ben, she beamed: "Yes! He's good, he's good!
Kristina shocked housemates and viewers during CBB when she announced on day two that she's expecting her first child with rugby player Ben, whom she met when they were partnered together on Strictly.
At the time she told everyone: "There was something [that] happened in my life before I came into the house over Christmas … and obviously I thought it's very private news, you know, but because we are living as one family now and everybody is sort of supporting one another now, it happened to be that I found that my boyfriend and I are going to have a little one."
She explained during her eviction night interviews that she spilled the beans so housemates didn't wonder why she was getting special treatment in terms of being allowed to sit out tasks or have extra food.
Last night, she told Rylan: "I feel amazing! I slept a lot and feel very rested and happy - and I ate a lot as well! Although I keep worrying that any minute I'll hear, 'The new batteries are in the house, would one housemate change the batteries...'"
She added that she's been thrilled by the public's support, saying: "It's been really good, actually, so I'm very happy about it. I don't know what's been shown from the house so I'm pleased people have been supportive."