Many couples find learning a method of NFP during their engaged time of preparation or shortly after the wedding to be a great way to start their marriage.
Starting cycle tracking prior to the wedding will ensure you are confident with the method and your bio markers prior to starting married life.
Many diocesan programs require a certificate from a method of natural family planning to complete marriage preparation - I am able to provide one for you after successful completion of an initial onboarding session and 1 month follow-up