The returning X Factor judge said that her hands are so full with three-month old son Ethan that she hasn't had chance to organise outfits.
She told The Sun, 'Last year at this time I had pretty much organised every outfit, but this time I am only just starting to get stuff together and we are only a couple of weeks away.
'I am completely unorganised so I will be excited if I get out with a frock on the right way and I haven't got my shoes on my head.'
The 38-year-old insisted that despite reports, she has not launched into a crash diet to shift the baby weight.
She added, 'You can only do the best you can do and I have not been crazy about losing the baby weight because it is just important for me to concentrate on being a good mum right now.'