I have a MeLuna Classic size Large. I have three kids, a pretty average flow (relatively heavy first couple days, steady for a couple more days, then pretty light for the last few days), and a very low cervix. I've only used it one cycle, so I'm not sure if this is because I'm still learning or not, but my issue is this:
It slips down and it leaks a little bit.
I insert it as high as I can (admittedly, not all that high because I'm 'short'), but when I next go to the bathroom it is sitting pretty much as low as it can be without sticking out. The MeLuna I have has the ball on the end. It's NOT uncomfortable though. And it leaks just enough that I need to wear a pantiliner every day... similar amount to the last couple days of my period when just using pads. There is plenty of flow caught in the cup, but more leaking than I think there 'should' be. Enough too that I don't want to go to the beach for a couple hours because, without backup, I'd end up embarrassed. It leaks even more at night - enough that I wore a regular pad for the first couple nights.
I'm just a bit afraid that if I buy the X-large, it will add in circumference, but also in length. If it's possible that my body just wants to cup to sit low, any more length and it may be too long and end up sticking out or hurting. Also, when I remove the cup, it's "oval" shaped... is that normal? Will that matter at all if I do end up getting a larger cup?
Does this sound like I've figured out what is causing the problem... or do I just need more practice? I'm totally comfortable inserting it and turning it and everything. I'm pretty much positive that it is opening all the way (if I use the punch-down fold, I can hear or feel it open up). I also find that when I grab onto it, I don't even bother with the ball stem and just pinch the bottom of the cup... but I heard that that method was for experienced users only... but there's no reason I shouldn't just try a cup without a stem right off the bat, right?
Sorry... this is a lot of questions... but THANK YOU to anyone who can help!!