It is not unusual to have incontinence for up to 6 months after prostate cancer surgery so I think you are right on schedule. Any type of physical exertion can trigger urine leakage. So again, at this stage of your post-op period, your symptoms are very common. I suggest you continue to do the Kegel exercises as you describe them as they will build pelvic muscle strength so the muscle can support your sphincter. Do not dispair as I see many men after surgery and most get 'dry.' If you are concerned about performing the exercises correctly, ask your doctor for a pelvic muscle or continence specialist in your area as she can use EMG/biofeedback to show you how you are building your pelvic muscle