Labor before c section?

Jessica
My dr never told me at what point if I went into labor should I go in to be monitored and have my c section. I'm scheduled tomorrow for my c section at 5:30 am, but last night and all morning I've been having what are now painful contractions. This is my second pregnancy so I know it's early labor. I've just been waiting on my water to break. Does anyone know or have experience of at what point you go in?