It is common for pregnant moms to feel a dull ache on their lower back. As the baby gets bigger, the weight distribution on the lumbar spine and sacroiliac joints, along with the associated muscles and tissues, changes quickly and drastically. In more severe cases, the combined changes in weight distribution may cause sciatic nerve impingement. You may feel a numbing pain or burning sensation, running down the back and side of the thigh and leg, even going all the way to the foot.
Acupuncture has been very useful in pain relief and releasing restrictions in the surrounding soft tissue. It can be a crucial go-to, and is most helpful when the pain starts appearing, and not when the pain has gotten too severe.