The former glamour model – who has eight-year-old Harvey from a relationship with soccer star Dwight Yorke and Junior, five and Princess Tiaamii, three , with ex-husband Peter Andre – hopes to have kids with current spouse Alex Reid but is unsure how many more pregnancies her body would be able to cope with.
Katie – who had a miscarriage shortly before splitting from Peter in 2009 – said: "I definitely want more kids. I wouldn't want to adopt. Just see what happens. Because I've had two caesareans, I don't know how many more I can have – it depends on each pregnancy because you can't have a natural birth again."
The 32-year-old beauty also admitted she sometimes has to intervene in disputes between Harvey – who is partially-sighted and autistic – Junior and Princess Tiaamii because they are so different.
She told Britain's OK! magazine: "Junior's not so keen on Harvey, because he used to hit him when he was younger as Harvey didn't understand all the noises he was making.
"Junior might go up to him and push him, then run of. They're all good and they've all got their own little personalities. Princess is quite bossy and it's, 'why, why, why?' all the time."