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1 Labor contractions may feel like menstrual cramps. 2  Really bad menstrual cramps. 3  At least, that's the most common description that's bandied about.  4 It starts out like menstrual cramps -- and the crampy sensation progressively gets worse and worse, Dr. du Treil says.5  You may feel the uterus tightening.till, there are a few clues that what you're feeling is actually labor contractions. 1  Labor contractions may feel like menstrual cramps. 2  Really bad menstrual cramps. 3  At least, that's the most common description that's bandied about.
When your contractions get closer together, you are farther along in the delivery phase of labor. At the beginning, the tightening or painful part of the contraction will last approximately 30 to 45 seconds, near the end the pain will be longer. A true contraction is usually at least 30 seconds long. Some women experience false labor or Braxton Hicks contractions, which is not true labor so you may be sent home from the hospital if this is the case until your labor truly starts.