I knew you'd make a talented surgeon, but let's not forget that you also have amazing people skills that would also make you a wonderful family doctor or something else that's a little less of a pressure cooker. I'm guessing the doctors in every rotation are going to tell you you're remarkable and their field is your destiny! But hey, I also have a 45-year-old friend who gave birth to perfectly healthy twins last year with no IVF or anything. So it's probably okay to put some of those other things on the back burner for a little longer.
Surgeons don't have lives. They have wives who have lives. And their kids. It's extremely difficult to strike a balance for them. They have a specialty (ESPECIALLY vascular surgery) where they are called, AND have to be present 24/7. When someone hits the ER with a blue foot, you aren't far behind.
General surgery is the same deal. The only out is a large group with many taking call. Then the call times are horrible.
Just because you CAN have babies after 40 doesn't mean you WANT babies after 40. Lots more pregnancy problems. Financing kids and college and retirement at the same time is NO joke.