corn snake eggs day 67..got questions

so from everything that ive read up on it says, based off the temps i have and all, i should have had some babies a few days ago. now i know 6 or 7 days isnt the complete end of the world and read one place that said it took em till day 70. i have them in a reptibator in my basement. its always dark but ive kept the temp at 82 almost the whole time. so as far as everyone else here goes, have u ever experienced such long incubation time and two has the anticipation of this happening every actually done harm cause im goin crazy waiting for these little suckers to come out. started with 19 and now to 16 but they all look healthy and after i got a surprise clutch again of another 12 but down to 6 now.