I just got a Lunette Selene s2 and am using it for the first time. After a very good start, I have had some leaking.
I mostly use the C-fold, sometimes the punchdown and always make sure to check the base of the cup for dents once inserted. And when I remove the cup, I hear a noise that sounds like suction release.
After reading posts in the community, I wonder if I am inserting the cup too high, too close to the cervix. I have no problem going 'in exploration' down there, but I can't figure out what's what once there.
How can I recognize the cervix?