During pregnancy, a woman’s body is undergoing a number of different changes to accommodate the growing baby. As the baby grows, a mother’s center of gravity shifts to the front of her pelvis, resulting in added stress and discomfort in the lower back and the various joints of the pelvis. At the peak of pregnancy, resulting from the associated weight gain, the curve in the lower back (lordotic curve) can increase to the point of causing a serious impact on the vertebral joints, the sacrum, and the hip joints.

The nerves that travel to all other parts of the body have their origin in the spine. When the spine is compressed, these nerves can become irritated causing the pain to radiate to other areas of the body. Sciatica is a condition commonly stimulated by pregnancy, involving pain that radiates from the lower back all the way down the legs.

If a previous issue exists with the alignment of the spine, and there has been a history of lower back problems, pregnancy will often aggravate the condition. Pregnancy can cause the spine to become misaligned to the point that it does not simply go back into place once the pregnancy is complete. This can make the tasks that become necessary once the child is born, such as carrying a baby on your front or back, breastfeeding, and bending over to lift and pick things up, painfully difficult.