I have been using the Diva Cup for over a year now and a few months ago changed to the Lunette. I started my period yesterday, put in my cup, and voila! leakage all over. I know it was inserted correctly...I put my fingers up there and checked every time...but it still leaked. No blood inside the cup, only everywhere else. It got to the point where I switched back to my Diva Cup because it's a bit larger and stiffer and that way I know for sure it is sealed and not moving around (because the Lunette is made of softer material, sometimes I wonder if it has a mind of its own), but even that leaked. I finally decided to switch over to tampons for this cycle...but I really don't want to give up my cup!