VBAC Success???

Amanda
I am 34 weeks 3 days with my second baby. I had an emergency Cesarian with my first, and am going to try for a VBAC. My first daughter was 8lb 15oz when she was born and now my second is measuring big as well. I really don't want another c-section. Any mommas out there been in the same situation and then had a successful VBAC?