S.H.
Someone just recently posted a similar question; however, I believe she was having a lot of pressure in her abdomen. I also had back pain during my pregnancy and found a lot of relief with Motherhood's Maternity Support Belt. I only ended up using the belt portion, but found that it seemed plusher and larger than other belts. When I had it adjusted properly for my body, it helped my back tremendously. I also carried a pillow around everywhere with me and placed it in the middle of my back every time I sat down - now that was a life saver. Good luck in your search.