Katie, 36, has had numerous nips and tucks over the years, however she has warned fans not to make her previous mistake of getting carried away.
Speaking on her FUBAR Radio show this morning (24 June), the pregnant star said she has "recognised" the error of her ways after looking at old pictures of herself.
"Sometimes I've gone too far with it - my lips and my face - but I recognise that," Katie admitted.
"You don't have Botox to look younger, it's just to refresh your face. A few year ago I think I went too far with the Botox, fillers and lips. I think I've eased off it now.
"When I look back at pictures I think, 'Oh my god!'"
During last week's show, Katie revealed that she would be having a boob job once she has given birth to her fifth child, as she feels like an "orangutang".
On today's show, Katie was able to chat to a plastic surgeon and admitted that she'd hoped to have her breasts lifted within six months. However, he advised going under the knife nine to 12 months after the birth.
Katie concluded: "You have to be sensible when you have surgery, don't go too far like I have done in the past."
Meanwhile, earlier in the show, Katie told listeners that she hopes to "snap back" into shape once she has given birth to her fifth baby, believed to be a girl.
The soon-to-be mum-of-five also revealed that she is not a "strict" parent, admitted that she shops on the high street and branded her ex Dwight Yorke a "minger".
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