After 2 c-sections, the next delivery is always by c-section. If you have only one baby, and want 1 more- it is OK. However, if you have 2 already, you should think twice about going through another pregnancy. If the operation has been done well - the risk of scar rupture during next pregnancy is low - around 0.5%. However, every time one opens the tummy, there is chance of adhesion formation and its consequences. Also, every operation carries its own risks. A C-section is not that simple- there is chance of injuring the urinary bladder every time one does it - more so after every previous operation. Also, other problems like hernia formation should be considered.