It depends on your period. The intensity of every woman’s menstrual flow varies. If your menstruation
is average to heavy, you should empty the cup every 3 to 10 hours. Some women with very
low menstruation may even go 12 hours before emptying the cup.
On heavier menstruation days, you may have to empty your cup more often. If you have tried already the
big cup and have seen that you have to empty it every three hours, you have an extremely heavy period.
That need not be a problem but you should discuss it with your doctor. There are means of controlling
such heavy menstruation.