By the 27th week, your baby looks like a thinner, smaller, redder version of what he or she will look like at birth. Baby’ s lungs, liver and immune system aren’t yet fully mature, but they’re getting close. If birth were to occur this week, your baby’s chances of survival would be at least 85 percent!
The baby may start recognizing your voice this week, as well as your partner’s. But it’s probably a little hard to hear clearly given that his or her ears are covered with vernix, the thick, fatty coating that protects the skin from becoming chapped or scratched. It’s also hard for your baby to hear through the amniotic fluid in your uterus — similar to the difficulty in hearing under water. At 27 weeks, baby is now three to four times as long as he or she was 12 weeks into your pregnancy.
You will be getting noticeably larger and will have put on weight around your chest as well as your breasts. Make sure that you are wearing the correct size of maternity bra. Avoid lying on your back too much because this may make you feel faint, as the enlarged uterus presses directly against blood vessels.
The baby's eyes are open and it will be able to see light through the skin of your abdomen. It will have started to practise sucking and may even be able to suck its thumb or fist. The baby is now about 14.4 inches (36,6 cm) long and weighs about 1.9 pound (875 grams)