Baby weighs about 1.4 kg and is around 15.7 inches long. From now until about your 37th week of pregnancy, baby will gain about 200 grams a week. His lungs and digestive tract are nearly mature. His eyes are developed and he can see inside you and even track a light source. Your baby now has eyebrows and eyelashes. He continues to add fat, and is now strong enough to grasp a finger. You might feel breathless; it’s because your uterus pressing against your diaphragm. However, at about 34 weeks, your baby’s head will move down into your pelvis as the baby gets into the right position for birth, making breathing and eating a lot easier.
In preparation for respiration after birth, your baby mimics breathing by repeatedly moving the diaphragm. Your baby can even get the hiccups, which you may feel as rhythmic twitches in your uterus.
Your baby’s brain grows at a very rapid rate. It takes on those characteristic grooves and indentations. The wrinkles allow for an increased amount of brain tissue. With the regulation of his body temperature via his brain/body fat, the lanugo — the soft, hair covering your baby’s body — starts to disappear. However, you may see a few leftover strands on your newborn’s back and shoulders when he’s born. Another big change is that your baby’s bone marrow now produces all red blood cells (before, tissue groups and then the spleen took care of producing the blood cells). This is an important development.