I've been using cups for the past 6 years or so. In the meantime I've had two kids. My first cup was a Keeper. It leaked and would slide down, so I got the larger size Diva cup next. Since I've had my kids, it just hasn't been comfortable. I think my cervix is lower now. It also slides down and even though the stem is trimmed all the way off, it pokes out a tiny bit once it's slid all the way down and irritates the vaginal opening. I have a pretty heavy flow so I need as large a cup as I can, but want something that will be comfortable. Any suggestions? I'm thinking I need something shorter, but I'm not sure what is causing it to slide down, so not sure how to "fix" that part.
The Diva cup also leaks on my heaviest days, but not horribly. I empty every couple hours but still use a pantyliner on my heaviest days.