This one is best if you are over 30, or if you have given birth (note: it’s not only the measure of how you gave birth, the pressure of carrying a baby to term and the hormones can weaken your pelvic floor, regardless of how your baby was delivered). A heavier flow is best suited to a Size 2. Because our Size 2 cup is slightly longer than Size 1, it can be better for those with a higher cervix.