Have you ever wondered how famous mothers get back into shape so quickly after having a baby?

Well one US doctor is controversially claiming that they may not have been pregnant in the first place.

In a new documentary 'Making Babies' Dr Vicken Sahakian from the Pacific Fertility Centre says an increasing number of rich and famous people are faking their pregnancies and secretly paying social surrogates to do the job for them.

He says many well known models and actresses - whose income is based on their looks and who don't want a baby to interfere with that - are taking this route.

I've been speaking to Harriet Parsons - services manager with eating disorder support group Bodywhys about the pressure these images can put on other women: