Back pain

This child is ripping my back apart! I had times of discomfort when I was pregnant with my son, and ended up having back labor with him. Now I'm pregnant with baby #2 (28 weeks) and my back is killing me! I feel stretched SO tight in my belly that it's pulling my sides and all around my back. I can't imagine going another 3 months. Is it normal to have really bad back pain after having back labor with a previous pregnancy?