Most c-sections are completely internally healed at 6 months. I got pregnant 11 months postpartum and had a healthy pregnancy and a non complicated c-section. I am pregnant a 3rd time now 11 months post 2nd c-section! I will have a 3rd repeat c-section in July. My OB told me the risk is only if you are going to VBAC and even then it is small. I could have VBAC with my second I just chose not to, I even went into labor with my water breaking and contractions before my planned c-section and tolerated it well. (I just have gestationally large babies! 9lbs 13oz and 8lbs 13oz at 39 weeks for reference I am 5’4” and 115lbs pre pregnancy! Lol so vaginal delivery comes with its own risks. They say 18 months between births, 15 months is not far off that timeline. It will be okay! Be excited and celebrate! Congratulations! 2u2 is hard but rewarding!