I know its 21 days until they hatch supposedly. Is this 21 days from when they were laid or 21 days from when I pop them in the incubator? Just wondering if I needed to ask the farmer what days each was laid? Oh, another question... My eggs are coming in the mail. When I get them, do I need to unwrap them and wait for them to get acclimated to the room temp or just pop them right in the incubator?