"Using 3-D and conventional ultrasound images, two professors of radiology at Harvard Medical School give you a unique look into how your baby develops, from conception to birth. Drs. Peter Doubilet and Carol Benson explain what each image shows and what medical professionals look for to ensure that the baby is developing normally. The 3-D images show the baby's outside, while the conventional ultrasound images, along with the medical explanation and unique drawings, help you understand what's happening with your baby's organs, skeletal and digestive systems, brain, and heart. Not to mention how to tell if it is a girl or a boy before birth!"--Publisher description.