Is it possible to tear your hymen when using a menstrual cup? Ever since I started on the depo shot I rarely get my period anymore. I've had it now for a week and it got a little bit heavier so I decided to put in my diva cup for overnight. It's been a while since I last used it so I guess I kinda forgot how to insert it. Anyway, it opened up inside me too soon and kind of slid/popped out unexpectedly. I felt a stinging pinch down there and when I looked in the mirror, my vagina looks a little different. The actual hole changed shape and it looks like I ripped it a bit. Also I've never had penetrative sex and have never inserted anything in my vagina other than tampons/diva cup/fingers.