Back pain during pregnancy in most cases occurs in the center of the lumbar region of the spine. But in some cases, it may be located lower and on the sides. The location of pain depends on which nerve root is affected.
Back pain during pregnancy may be relieved by rest, and is usually made worse by movement. Very often nerve root compression occurs due to prolonged sitting.
Back pain during pregnancy is usually intermittent; it comes and goes during the day, and may be accompanied by tingling, burning, numbness or muscle cramps.
Most commonly, low back pain during pregnancy only affects one side of the body. The pain’s location may depend on how the fetus is positioned in the uterus. In most cases, lower back pain in pregnancy begins to occur between the fifth and seventh month. Very rarely, lower back can begin shortly after becoming pregnant.