Help! I felt a pop 36 weeks! What is this?

Alejandra • 21 years young college student 1st baby😊👶
So im 36 weeks at 32 weeks i had early labor symptoms and im 1cm. Well earlier i felt and heard a big pop it sort of hurt also i couldnt move for a minute or so. I went to the bathroom and there was nothing. Does anyone know what this could be? Or is it normal?