A process of baby birth, that process is called delivery. When a baby is ready to be born, then balance of the hormones in your body changes. These hormones are makes your cervix soft and shorter. The delivery is possible through the two types.
When a baby birth through the natural way (vaginal), it is known as normal delivery. In the normal delivery the baby born through the vagina in the supervision by a professional doctor and he make sure that baby and his mother are well or safe. This process become without the medical assistance. Then after delivery the doctor can relieve the mother and child from hospital.
When a normal delivery is not possible to the baby birth, then have to needs to a cesarean (not through the vaginal) process to birth of a baby, it is called complicated delivery.