My only real concern is that my cervix sits really low during my period (appx. 45 mm to the bottom of my cervix, and that's being a bit generous). I know that this means I'll have to trim the stem off of whichever cup I get, but I know that a Lady Cup without the stem is 46 mm, and I understand that it's one of the narrowest/shortest on the market. Would that be uncomfortable even with the stem cut off?
I'm not concerned about capacity since my flow is really light - I only ever have to use light tampons, which can be a pain to find in stores.
Another (more minor) concern of mine is that I am a virgin with an intact hymen, so I assume that I should get a narrower one.
I love the idea of cups as they allow the freedom and comfort of tampons without the health risks and negative environmental impact, but I just don't know if wearing one would be logistically possible.