Bubbly-Fluttering feeling

Soooo the last 2days at random I’ve been feeling this very bubbly almost like champagne feeling in my uterus along with a fluttering feeling near my uterus and back pain and dull pain near where my ovary is on the right side I still have 3days before my period and because I’m soo in tuned with my body I’ve never felt this before and is just curious has anyone else had this feeling before and was it normal? Also because I’ve never felt it I tested myself and it was -.(And I’m not gassy) But I’m just curious has anyone else had that feeling?