VBAC after three c-sections

My doctor most likely won't approve and be against it, but I'm going to ask if it might be a possibility. I've had three c-sections, years apart. My oldest is 11. I was overdue with him, supposedly, even though he only weighed 6lbs 3oz. I was young, 20, and by myself. My second is 7. I just went ahead and did another c-section. Same for my 3rd who is 4. I'm not even sure if I can have naturally bc I never dilated past 1 or went into labor. They honestly didn't give he enough time to see if it would happen. Anyway, thoughts? Anyone ever done this?