3 Miles today, and not feeling tired!!!?

Adriana • First Time Mom, can't wait to meet my little love Nov, 10. 2016
So proud of myself , walked 3 miles today!!! I'm 39 weeks today!!! 1 more week to go... I didn't feel tired after I finish my walking, is this "the burst of energy" that is a sign of labor??? , I felt like I can go on and walk more...