 Inasmuch as the strict letter of the law, as understood by classic authorities, does not obligate the fathering of limitless number of children beyond the requirement to produce at least one child of each gender or according to another opinion until two male offspring are born, there is wide latitude within halacha to limit family sizes, although usage of contraception varies from community to community.Many Modern Orthodox authorities are inclined to permit contraception for a broad array of reasons, with some arguing that a couple may decide to delay procreation even without specific rabbinic permission.The birthrate in Orthodox Judaism is significantly higher than for Reform Judaism.