In the next few weeks, our baby will double his weight and add inches to his length. Right now, he's about the size of an avocado: 4 1/2 inches long (head to rump) and 3 1/2 ounces. His legs are much more developed (as we saw in last week's ultrasound), his head is more erect than it has been, and his eyes have moved closer to the front of his head.
His ears are close to their final position, too. The patterning of his scalp has begun, though his locks aren't recognizable yet. (Awwww....he will be so cute when he has hair!) He's even started growing toenails. And there's a lot happening inside as well. For example, his heart is now pumping about 25 quarts of blood each day, and this amount will continue to increase as your baby continues to develop.