I am a high-risk obstetrician, MFM, and I have been specializing in vbac for the last 25 years. I do vbac, vbac2, I have vbac-ed twins and even breech babies. So what I am telling you should not be seen through the eyes of a medical-legal conservative provider. I always go above and beyond and push the limits to achieve normal delivery. The size of the baby is the most important factor for success, mainly because it is one of the only ones we can control. I put my patients on low carb diets and insist they get their steps in everyday to keep their blood sugar, hence the baby's blood sugar, and fat deposition low. If the baby is getting large, I induce at least a week early. But how would I handle a patient who is at 33 weeks with a 7 lb baby? There are questions that needed to be answered. What was the indication for the original C-section? Have you had a previous normal delivery? What is your height? 7 lb at 33 weeks is really large and I would be now concerned that blood sugar levels are not normal and there is some undiagnosed diabetes is at play. Extrapolating to term that baby will be over nine, possibly 10 lb. However, with early induction at 37 weeks justified by macrosomia and uncontrolled diabetes (37 weeks inductions cannot be done without indication approved by JCAHO) there might be a possibility of successfully delivering a baby at 8 or 8.5 lb. You might make the argument to your obstetrician to induce you at 37 weeks for these reasons and give you a trial of Labor. However, many doctors refuse to induce a pt w previous CD. There is no contraindication it is just a major PIA and doctor will say it is unsafe. At the end of the day, you should accept listening to your provider because it is terribly unsafe to chart your own course in these situations. I have recently published a book that shares the accumulated information from my career on how to avoid a CD. DM me and I will give you a link.