Muscle pain

My tummy is getting bigger and my back is hurting a lot, can't seem to turn when I'm sleeping. I went for reflexology (as the accupuntuist recommend not to get treatment in late pregnancy) last week and it gets better, and this week I went for a pregnancy massage and it's a little bit better, I think I'll need a massage everyday. And my groning is hurting as well, especially in the morning after a full night's sleep, the midwife said it's because the baby and the uterus has put pressure downwards so it's normal. With all these pain, the Braxton Hicks seems to be nothing uncomfortable at all.

I found walking quite helpful to the muscle pain, the groning pain seem to disappear if I walk more. Also some yoga pose & stretching are helpful to release the tension as well.

Also reading a book on back pain, they recommend massage, exercise, relaxation, rest and by chiropractor and all sorts. But one thing interesting that I've never thought of is that the best way to stop back pain is to prevent it from happening. But how to prevent back pain? By using correct posture in everyday activities. It's easy to say that to lift with bended knees, not to drag heavy things when climbing up a stairs/ ladder, use the whole body's weight or kneeding instead of bending when doing the garden...etc. But am I really aware of my posture when doing housework and at work? I guess no, maybe that's what gets added on the back pain.