How long after walking does it take to go into active labor?

I am now 38 weeks pregnant, my doc says i am 1 cm and 60% effaced. Today I have walked done squats and been up and down the stairs. How much longer should it take for my contractions to get closer and my cervix to finish thinning? Should I keep walking and moving or go to sleep? I don't know what to do from here any suggestions?