I have been a cup user on and off for about 2 years. I started with the Diva, not knowing there were so many choices out there. The Diva was ok but it felt like it kept slipping down and becoming uncomfortable. I then moved on to the Lunette Selene. It has been the best cup for me so far. I never worried about trying to find my cervix because for the most part it worked fine. The issue with it was on my heavy days. Sometimes I would take it out because it was leaking but only half full. I assumed my cervix was taking up room so I bought both the Yukki and Fleurcup. All of my cups are large because I have 3 children and a heavy flow. I've tried using all 3 cups for several cycles and they have ok but not perfect. This cycle has been a complete failure and I can't figure out what I'm doing wrong. For the past 24 hours I have been trying all 3 cups in every fold and angle I can think of. I haven't been able to place it one single time without leaking. It's like I'm going backwards in the learning curve. I've tried everything possible to find my cervix but can't. I thought I felt it at one point but it was so close to the vaginal opening I don't think that's it. I have no trouble inserting any of the cups and they are completely comfortable when they are in. When I pull down on them they have suction so I assume they are open and sealing. Also, when I insert and let go it seems to shoot up like a rocket as soon as I let go. I think I've read every post on here and tried every technique and nothing works. This is my last ditch effort before having to go back to tampons and I'm so disappointed. Is there anything you can think of that I haven't tried.? It just doesn't make sense to me why I'm leaking with every cup.