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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.
Cramps in Later Pregnancy. Abdominal cramps can occur later in pregnancy also as the uterus grows larger, but be on the lookout for signs of preterm labor, and always let your physician know right away if you are having severe pain or bleeding alongside the cramping.