this is my first time with a bator. I did the dry inc. temp swings on my havabator from 98.4 to 100.6 during the cycle.humidity was at 25%. on day 18 I moved the eggs over to a still bator with the bottom temp as 101.at 75% humidity. well this is only day 20 and I wake up to hatching eggs and 1 baby in the bator . why are they hatchn early?