How long do most women go without getting their menstrual period?

2-3 months: We consider cycles normal if they come roughly every month and aren't too heavy or crampy and no bleeding in between. Cycles in healthy women can be as close as 21 days and as infrequent as every 2-3 months. If you period is unusually late, you should consider pregnancy if that's a possibility and hormonal issues and be checked by a gyn.