The suction does not initiate pain, but the stem is slippery and it is rather difficult for me to get my fingers far enough to reach. When I insert it, it stays close to the opening as per the directions, but it somehow migrates while I'm wearing it.
Has anyone else had trouble with this? I figure it may take me a few cycles to get it right every time, but it's frustrating (and messy!) to play tug-of-war with my vagina.