I've always went into labor 6-8 am with ALL 3 of my girls, but for several days now I wake up from midnight to 3-4 am with contractions, they aren't exactly painful per say but they are uncomfortable enough to wake me up out of sleep and keep me up sometimes they even make me feel sick. I've got a feeling I'm going to go into labor at this time in the morning when I finally do go into labor.