In the 19^th week, the baby is now nearly six to seven inches long and weighs about six to seven ounces.  The facial features are now getting the final shape and the ears and eyes have taken to correct position in the face.

In preparation for birth, a lot of things are happening.  Myelin, a fatty substance is being made which coats the nerves and this insulation makes it possible for electrical impulses to travel from the brain to the tips of the body and back.  The number of nerve cells is now the same as that of an adult.

In the 18^th week, the baby continues to grow and your body is adapting to the changes due to this growth.  Your uterus is increasing in size and this is pulling down the lower back and pushing your belly out.  If you lie down on your back, the growing uterus presses against the veins at the back of your abdomen which in turn hinders the free flow of blood.  This could cause problems like low blood pressure.

The end of the 17^th week of pregnancy translates to four months.  Though the baby is still very small, your body is adjusting to the growth expected.  This means your balance can get affected as the center of gravity shifts.  You need to be very careful as a misstep leading to a fall can be dangerous to both you and the baby. The other news is now the baby has graduated to develop sweat glands.

The week 16 is mid of the 4-month pregnancy. It’s an important week as your baby can now hear you! It may show movements on scans,  whenever you talk. You may start feeling the light flutters which are easily confused with gas. But in few weeks the kicks and turns can be easily recognized.

Your baby in week Fifteen

Your baby is the size of an apple! Your baby can make funny expressions like smiling, squinting and even frowning in the womb. The skin of your baby is very thin like a paper, where blood vessels run like a cluster of very thin wires. You may experience some slight flutter for the first time in your womb. The baby starts moving from 7^th week. But some moms feel them in 14 to 26th week or few experience them in 18 to 22 week.  It is developing lanugo. These are fine hair that would cover the body and protect the skin in the womb. These hair fall naturally just before the due date inside the womb. Babies born earlier may have lanugo, but they would fall naturally in few days or weeks (there is no need to rub them as rubbing the skin of a newborn baby is not at all recommended).  The baby’s need for calcium increases as it continues to absorb calcium and form bones from cartilages in its body.