Has anyone tried these? They're for light bladder leakage. For example: leakage from laughter, sneezing, or exercising. I have slight leakage ever since my daughter was born when I exercise. It's super embarrassing and I hate it! They're supposed to be like tampons, you insert them and they push up on the urethra. The reviews on their website are mostly from women who are 50 years and older so I was hoping for some younger reviews before I drop fifteen bucks on a box. Thanks!