the application is considered by a committee who have frequently rejected applications which were apparently legal in the past, they don't really want the lower paid's dependents consuming health services, adding to traffic congestion etc. If your husband has a high salary and the support of his company (not always available as they might prefer him to be on single status, not taking time off and leaving work on time to be with you) the process can take from one month (quick) to whatever if processing is slow. Good Luck!