165. Love always gives life. Conjugal love “does not end with the couple… The couple, in giving themselves to one another, give not just themselves but also the reality of children, who are a living reflection of their love, a permanent sign of their conjugal unity and a living and inseparable synthesis of their being a father and a mother”.(Familiaris Consortio 14)
With this we begin with the biological fruitfulness of children, and move into family relationships that arise from and support marriage.
For your reference, remember that Amoris Laetitia is online here.