3. Floral disaster - Drew Barrymore

Editor's comment: There are many ways to show your baby-bump, and Drew Barrymore has defintely chosen the wrong one to do so. A simpler, figure-hugging dress would have been a much better choice for the heavily-pregnant Barrymore, rather than this semi-transparent dress decorated with loads of floral pedals, which added more volume to her (that she probably didn't need.)