Scheduling problems

Ashley • Navy wife, Mom of 3, Zumba Instructor, Animal Lover
So I really love my Obgyn but I just found out that she will be out of town the week we need to schedule my c-section, June 20-24 (39 weeks). We can't schedule it before that unless there's a medical reason. My options are:
A) Go in to my appt the 17th and she said if I'm dialated at all that day she would do it.
B) I could  schedule it the 20-24 but it would have to be with one of her associate doctors
C) waiting till th 27th which is my actual due date. This scenario of course runs the risk of him coming sooner on his own (which you put me with one of her other doctors anyway) and poses more of a risk of uterine rupture since I've had 2 previous csections. 
I need to be able to plan a little bit for it because we are military and don't know anyone here yet that can watch my other 2 kids during my surgery, so I need to have an idea when to have my family fly in😩 Just not sure what to do!
Ps. Neither of my other 2 came early on their own so no history of that.