After birth the most important thing for the baby is to breathe; it is necessary that the lungs, which had never known air before, fill with it and start to breathe. The baby, who had previously received oxygen from the mother's blood, must now take it from the air with his own lungs. And in a miraculous way, the lungs, when had never taken a breath before the first moment of birth, begin to breathe quite normally.
At the moment the baby is born, God creates everything in readiness and ensures that the preparation of the lungs has been completed as required. For the preparation of the lungs, the diaphragm comes into play; it is located between the stomach and the rib cage. The diaphragm begins to function towards the sixth month of pregnancy. At first it expands and contracts intermittently several times an hour, but after birth it will do this continuously.
It can be seen from this that the baby is constantly under special protection, but it must be remembered that this is not the mother's protection. As the foetus develops, the mother carries on her normal life; none of the changes in her body are under her control. Even if she wanted to intervene, she could not. All these developments occur by the eternal power of our Lord. God has created all the things required for a child to come into the world as a normal human being in the most wonderful way. All the needs of the baby while it is in the foetus stage are met, and the mother is spared the necessity of thinking about what she must do to bring the baby into the world and ensure that the baby will survive.
Even if she thought about doing something to this end, there is nothing she could do. For example, taking waste material from the body of the foetus into her own kidneys, purifying it and discharging it are things which no mother could do on her own. It is God Who determines all the needs for a new human being to come into the world and constructs the system in the way that will best respond to these needs.