Is it safe to be pregnant 7 months after c-section?

Ok so please don't call me irresponsible because if i'd had a vaginal birth I wouldn't have any worries about being pregnant again. My baby has been sleeping through the night and is well behaved so even if the new baby is a little monster I'm sure I can handle it :-) My question is what are the potential risks associated with getting pregnant less than a year after c-section and do I even have a chance at a VBAC? I plan to ask my doctor too, but they wont see me til the 21st because they want me to be 8 weeks along before they confirm the pregnancy.