So i recieved 4 fertile chicken eggs from my next door neighbor, but once i put the eggs in my previously calibrated incubator has been thrown off. Humidity is lower with the eggs in and temperature fluctuates from 100 to 98.6 f with an average at about 99.2. I'm trying to fix this, but is it normal? Edit: i have just stabilized the temperature and remedied the humidity with a warm water jar, but i still do need help. It's a home built incubator from a reptile 25 watt heat lamp in a styrofoam cooler, with a temp probe for heat control and a thermometer and hygrometer so i can watch that. There are 4 small (like 1/3" diameter) holes in the top of the incubator for ventage. I put them in 2 hours ago, average temperature is 99.35 highs of 99.7 lows of 98.8. Humidity is 57% at current where it appears to have leveled out, but i am unsure. This is hour 2 of incubation. The temp controller probe was also previously in a Leopard Gecko enclosure for the same purpose. I believe i cleaned it but wheter i did a good job or even did i cannot remember. I have god awful memory. Hope that info helps!