Cervical Ripening???

Beth
Sunday I will be 38 weeks exactly and I have to go to the hospital that evening to start a cervical ripening. At my appt this past Tuesday my cervix had not started doing anything yet. Has anyone had this procedure done? How long did it take and does it hurt? This is my second baby. I was induced with my first but never had to have the cervical ripening done. Please tell me your experiences with this! Thanks!!