If the leakage is as you say only slight and only if you cough, sneeze, or hiccough then pelvic floor exercises should solve the problem.
My advice would be to try them for some time before considering surgery.
If you find web-sites confusing, any physiotherapist, nurse or midwife can tell you how to do the exercises.
After abdominal surgery, I was told that if I found it difficult to feel whether I was clinching the opening of my vagina, not to worry.
If you squeeze your buttocks together as if you are trying to prevent passing wind, your vagina and the neck of your bladder automatically follow suit.
Five minutes of exercise a day should help.
Other helpful advice is to wee at regular intervals and to make sure that you empty your bladder completely each time (sit a couple of seconds longer than you think you need to before getting off the toilet again) and to avoid becoming constipated.
Usually, incontinence is caused solely by the muscles in the pelvic floor having become too slack, but obviously, if you haven't done so, you should see your G.P.
In my case an ovarian cyst was causing the trouble! Hope it is only your pelvic floor.