Mom's out there who had a very slow labor... what were your symptoms? I read about women who go into…

Mom's out there who had a very slow labor... what were your symptoms? I read about women who go into labor way before their due date and have to go on bed rest or do something to stop it. Did any of you ladies notice changes to your body? or start having different symptoms? My insurance doesn't cover spur of the moment doctors appointments so I don't want to go in if it's nothing.. I have an appointment for Tuesday.