Celebrities like Victoria Beckham, Rachel Zoe, Kate Hudson and Alicia Keys won't give up their stilettos, even during pregnancy.  These pregnant fashionistas have been photographed in heels as high as 5 inches!  Victoria Beckham reportedly suffered a slipped disc in her back as a result of wearing sky-high heels.

A woman's body changes in shape and size during pregnancy.  Curvature of the spine leads to low back pain, as well as a loss of center of gravity, which can lead to falls.  This can be exacerbated by wearing high heels.

Flats and small heels (less than 2 inches) are ideal.  The bottom line is listen to your body and wear what is comfortable.