We just hatched our first hatch. So far, 12 out of 18. Cute as can be! The first one came right at day 21 and now we are on to day 23 and just got number 12. We have 6 eggs left unhatched. We used eggs from several kinds of chickens, some of our own and some we got from a farm. We candled on day 14 and all 18 were good. All of the smaller eggs hatched, but the bigger eggs didn't. Is this a coincidence or was something off (ie, temp/humidity)? Do the bigger eggs take longer to hatch?