A stage of stable pregnancy is entered. The baby starts taking nourishment and oxygen from the placenta via the umbilical cord. The uterus now protrudes as far as the navel making the pregnancy more conspicuous.
The breasts develop and grow larger. At about 18 weeks some mothers begin to feel fetal movement.
The baby is now about 25 cm long. Heart and lungs are working well and the baby's heartbeat can be heard with a stethoscope. The shape of the ears, nose and mouth become defined and finger and toe nails and hair begin to grow.