What is the Catholic Church's view on the sanctity of life when a mother's life is at risk during pregnancy?

The Catholic Church believes in the sanctity of life and values both the mother and the unborn child. In cases where the mother's life is at risk during pregnancy, the Church teaches that medical interventions should aim to save both lives if possible, but if it is not possible to save both, it may be morally permissible to prioritize saving the mother's life.