How do you feel hours before labor?
Low back discomfort, weight loss, diarrhea, and water breaking indicate that labor is 24 to 48 hours away when the delivery countdown starts.  However, since every woman's labor is unique, what you go through in your final hours of pregnancy can be different from what another pregnant person goes through.  You can check for indications that birth is getting close even though you can't forecast the day or hour of labor.