Week 18: Baby begins to hear
Eighteen weeks into your pregnancy, or 16 weeks after conception, your baby's ears begin to stand out on the sides of his or her head. As the nerve endings from your baby's brain "hook up" to the ears, your baby may hear your heart beating, your stomach rumbling or blood moving through the umbilical cord. He or she may even be startled by loud noises.
By now your baby may be 5 1/2 inches (140 millimeters) long from crown to rump and weigh 7 ounces (200 grams).
If you have a Facebook, you can add a pregnancy info blurb to your feed (one is Baby Gaga) that will keep you up to date on what developmental milestones your baby is reaching.
at 4:12 AM on Jul. 11, 2011