Week 18

Your baby's brain is growing rapidly. By this stage, all of the major areas have been differentiated. The cortical layers, which govern specific brain functions, are beginning to form. The fetus may exhibit signs of a primitive body language in utero, such as recoiling when the needle for the amniocentesis comes too close for comfort. Within the next few weeks, she'll be able to hear voices outside the womb and respond positively to music or loving words. It's time to fine-tune your singing and storytelling skills!