This is the report of a 5-year follow-up survey of 350 couples married in Hull in 1965–66 and first interviewed shortly after marriage. It is based on the results of a second set of interviews conducted in 1970–71. The couples' initial intentions on family-building and birth-spacing are compared with their fertility experience during the first 5 years of marriage. Changes in patterns of contraceptive usage during the period are explored and both family-building and contraceptive practice are examined in relation to (...) those variables which were found to influence the original intentions as expressed in the first interview. (shrink)