Your baby will grow to full term during the third trimester! All of his or her major development will be complete in preparation for delivery.

WEEKS 25-28 OF PREGNANCY  

The eyes can open and close and sense changes in light.  

Lanugo begins to disappear.  

The fetus kicks and stretches.  

The fetus can make grasping motions and responds to sound.  

Lung cells begin to make surfactant.

WEEKS 29-32 OF PREGNANCY

With its major development finished, the fetus gains weight very quickly.  

Bones harden, but the skull remains soft and flexible for delivery.  

The different regions of the brain are forming.  

Taste buds develop, and the fetus can taste sweet and sour.  

The fetus may now hiccup.

WEEKS 33-36 OF PREGNANCY  

The fetus usually stays in a head-down position in preparation for birth.  

The brain continues to develop.  

The skin is less wrinkled.  

The lungs are maturing and getting ready to function outside the uterus.  

Sleeping patterns develop.

WEEKS 37-40 OF PREGNANCY

The fetus drops lower into the pelvis.  

More fat accumulates, especially around the elbows, knees, and shoulders.  

The fetus gains about 1/2 pound per week during this last month of pregnancy.