I just tried the disposable SoftCup by Instead, and it worked fine, it leaked every time I used the bathroom and I was a little afraid to sneeze but hey, still better than pads. Anyway, I'm 20, non-virgin, no kids.
In all honesty I'm pretty familiar with my set up and I'm comfortable with cups because I'm familiar with toys. BUT I haven't the foggiest idea where my cervix is. Maybe it's really high? I'm not sure, all I know is my fingers don't reach. (Maybe that's why my gyno seems so gung-ho in my Pap tests? Ugh. ).
The Diva instructions say you should just use it to basically plug the opening and to keep the stem level with the vaginal opening. But I'm thinking there's no way it will stay there. It'll go up or out basically. Hence why I'm asking about the cervix position. Do you guys mostly try to get the cup to seal around the cervix itself? That's the impression I'm under. Anyway, thanks for taking the time to read my post and help me out!