When i went to bed at 2am everything was great. 21 day incubation, chick peeping and egg rolling. At 6:30am I woke and saw the temperature was over 40C (104-105F) and all is silent. I candled and see no movement. Should I wait or should I intervene? This is my only egg and it'll be a real shame to lose it at this stage. Would you open the egg?