can stress stop labor from happening and cause u to go overdue

I am 39+6 my due dates the doc gave was june 19 and june 21 im only a half of cm dialated 70% effaced for the two weeks little to no contractions . I have had a normal complication free pregnancy but i can say from may 20 up until now my stress levels have been through roof ive been struggling emotionally not eating not sleeping as much ive been up at 4 and 7am crying my eyes out over the thing ive had to go through and im scared my stress levels can cause me to go overdue . What do you think ladies