This week your baby is beginning to get a sense of whether he or she is upside-down or right side up inside your amniotic sac. That’s because your baby's inner ear, which controls balance in the body is now developed. By the
24th week of your pregnancy your baby is about 8 inches long and weighs about 1 pound. Babies born at 24 weeks have a greater than 50-50 chance of survival, and the odds get better with every passing week, still, complications are frequent and serious.
This month, your little boy or girl will add more body fat, which will make his or her skin look more smooth and less wrinkled. The skin will also begin to take on a little more color.
You will noticeably be putting on weight. Your feet and legs may start to feel the strain of carrying this extra weight, so make sure that you wear comfortable shoes and that you get plenty of rest.
Vigorous movements followed by periods of quiet will start to occur as the baby develops its own waking and resting periods. The pattern that develops now may well continue after the birth so it’s a good idea to monitor it for a few days to see how it compares with the sleep pattern once the baby is born. The heartbeat can be heard with an ordinary stethoscope and the baby can hear you clearly when you speak. It is now around 11.8 inches (30 cm) long and weighs about 1.3 pound (600 grams)