Active pregnancy, late delivery?!

So I have had an amazing pregnancy where I have been able to walk on campus to all my classes, stay on my feet all day at work, and just be up and about a lot. I am defiantly getting tired as I reach the 36 week mark this week but I am still very active and working. I guess my question is will being so active during my entire pregnancy mean my baby could possibly be late since he's used to me being active or the closer it gets walking and being active can still cause me to go into labor?