It is generally safe to have a natural birth after undergoing an appendix surgery, even if it was just one month before your due date. However, it is important to consult with your healthcare provider who can assess your specific situation and provide personalized advice. They will consider factors such as the type of surgery you had, any complications that may have arisen, and the overall health of you and your baby. In some cases, a cesarean section (C-section) might be recommended to avoid potential risks associated with vaginal delivery. Your healthcare provider will guide you in making the best decision for a safe delivery.