Hi I do believe it is pregnancy related as I also suffer with lower back pain, i am 6weeks along and that was my first symptom. I was pregnant earlier in the year but miscarried but back pain was a huge problem then too. I have read that the hormones in your system loosen the muscles in that area and therefore there is not as much support for your spine which causes pain?

Hope it doesnt cause you too much grief! Just think we have to enjoy many more months of it ](*,) !!!