I still haven't been fitted (have been a bit busy) and didn't think much of it. I am 15 weeks and things don't feel that much bigger, but I had an early pregnancy class last night and they were discussing back pain, particularly between the shoulders, which I have been having. Apparently even a small increase in size can be enough to cause pain. So I am off on Saturday to get fitted and get the right support happening and hope this helps things.