For an absolutely stunning peek into the world of a child in utero, check out this interview with Dr. Carlo Bellieni, Department of Neonatal Intensive Therapy of the University Polyclinic Santa Maria Le Scotte of Siena.
You'll learn of the child's senses, experience of pain, capability of memory and dreams, and more. It is a fascinating article which dramatically illustrates the oft-quoted truths from Psalm 139. Very cool!