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The ligaments that support the uterus will stretch and with this stretching may cause mild cramps. 3. Miscarriage-Cramping during early pregnancy, especially accompanied by spotting or bleeding, is a warning sign of a possible miscarriage.
Signs of an ectopic pregnancy include cramping and abdominal pain (particularly on one side), spotting, or bleeding. 5. Other causes of cramping during early pregnancy - constipation or gas pains. Pregnant women often have problems with constipation. This can lead to uncomfortable cramping as well. Causes of Cramping During Late Pregnancy. 1.