VBAC or no VBAC ?

I'm trying to do research on if I should get a VBAC. My doc says I'm the prefect candidate for it because the only reason I had one last time was because my son was breached. My son was born on 11/11/13 and passed away from a rare heart defect 6 months later. I'm now 13 weeks pregnant with our rainbow baby and due May 20th and could totally use some advice! 
Thanks in advance!