Hi there... I too recently had a c-section due to my little one being a combined breech.
When i asked my midwife about when its considered "safe" to become pregnant again she said a year to 14 months after.
to answer your other question.... I think it might be easier to book a c-section with your next, so you have peace of mind.. but you can also wait and see what the baby is measuring at by ultrasound, that way you have an idea of what your baby is weighing in at!
Go with your gut feeling and Im sure everything will be fine