Vaginal Vs C-section delivery

Lauren

I'm currently 36w 2d but my baby is measuring ahead so he's 37w 2d. He's been head down since around 32 weeks. He's now breech.. AGAIN. My first baby I delivered vaginally & he was never breech. I go next Wednesday to see if he has turned.. if he hasn't I'll more than likely be scheduled for a C-section. What are the major differences??