12 Weeks along - now a lime!

Your Baby's Growth and Development

Your baby continues to grow and develop tremendously during pregnancy week 12. You'll be amazed at the pregnancy week by week changes that start occurring within your baby in the upcoming months. Your baby's genitals will start showing signs of being either male or female soon. During pregnancy week 12, your baby's brain is starting to make hormones, and nerve cells are multiplying at a rapid rate. Your baby may be sucking as early as this week, and your baby's kidneys may even be producing urine.

By pregnancy 12 weeks if you stimulate certain points of your uterus your baby may move in response, though you won't be able to actually feel your baby moving for another few weeks!

Meanwhile, nerve cells are multiplying rapidly, and in your baby's brain, synapses are forming furiously. His face looks unquestionably human: His eyes have moved from the sides to the front of his head, and his ears are right where they should be. From crown to rump, your baby-to-be is just over 2 inches long (about the size of a lime) and weighs half an ounce