Your baby's total length is 18.9 inches (42cm) and she is perfectly formed! She measures about 11.6 inches (29cm) from crown to rump. All she has to do is fill out more. Your baby weighs almost 4 pounds (1800g). If she were to be born now, she would still need to be incubated as she has insufficient fat stores to keep it warm.
Your baby can distinguish between light and dark.
Your baby can hear the outside world quite well now, and can also hear the sounds of your heartbeat, your digestion and the blood rushing in the umbilical cord. The pitch of women's voices are in the range babies are most able to hear over all the internal background noise. Your baby is already familiar with your voice and will be able to recognize it after birth.