Hi there,
Just wanted to say that I think any really bad back pain in pregnancy should be checked out by your Doctor/ob/midwife just in case. If it is just normal pregnancy pain then that's great, in which case I would recommend going to an osteo! I esperienced shocking public symphasis pain in both my pregnancies and found that massage and the osteo helped. Although I don't want to alarm you, I did have my first baby premature and the labour started with bad back pain, so I just think it is better to err on the side of caution.