I've been using the diva cup for about six months. It works well in that it doesn't usually leak, even when AF is pretty heavy. However, it does cause vaginal soreness, which I mostly notice when DTD within a few days of using it. I'm wondering if this is normal and just one of the downsides of the menstrual cup (that for marketing reasons diva cup does not warn you about!) or if it means that I am using the wrong size/brand, or still managing to insert it wrong despite the absence of leaks. Anyone else experience this?