How does this part of female reproductive systems function

Hello, I would love to help you!

Please attatch an image or specify what female reproductive part you are referring to, therefore I could answer how it functions :)

birth control pills, the birth control patch, and the vaginal birth control ring are these hormones prevent pregnancy mainly by stopping ovulation

it hurts at first because " the cherry is broken" which is a thin layer of skin that breaks so the first time girls have sex it hurts and it bleeds but after the first time it does hurt again because the skin that ia torn does not break again/ grow back.