Once you've got your hospital bag packed, your infant car seat installed and the diapers arranged in little stacks near the , waiting for the early signs of labor  can drive you to distraction. Never mind that it can be hard for a first-time mom to know whether that squeeze was just another Braxton-Hicks contraction  -- or the real kick-off to childbirth . And the answer that everyone gives -- "Oh, don't worry. You'll know!" -- is just not helpful at all.
Moms Reveal: "I Knew I Was in Labor When"- http://www.ivillage.com/signs-labor-how-know-its-time-delivery/6-a-392951
BTDT mamas, how did you know you were in labor with previous pregnancies? What made you realize this was really *it*?