Kimberley Walsh finds dancing ''strange'' now she is pregnant.

The 'Strictly Come Dancing' finalist - who is expecting her first child with boyfriend Justin Scott - and her former Girls Aloud bandmates Cheryl Cole and Nicola Roberts recently organised a surprise birthday party for their choreographer Beth Honan at London nightspot The Box, and though the singer had a good time, her changing shape made her feel awkward on the dancefloor.

She said: ''I can't believe I lasted till 3am with no alcohol!

''It was such a good atmosphere - I fed off everyone's energy and the music was amazing.

''I did try to have a dance but it does `feel a bit strange with the bump - I certainly wasn't busting the moves I used to. But everyone else made up for it, they were all going wild.''

Kimberley also admitted she is finding it difficult to find clothes to suit her baby bump, so has been buying bigger sizes and getting them altered to fit.

She added in OK! magazine: ''It was nice to get dressed up but it is getting harder to choose outfits. I opted for an Alice by Temperley jumpsuit.

''I bought it a couple of sizes bigger and got the top half taken in, but left room for the bump.''