I want to hatch some chickies! But it is really cold out (18 was the high today) and I doubt eggs that have frozen at all will be good. Without going out every 30 mins or so to gather eggs, how can I get some I can hatch? I do have a roo with my girls and all eggs I have used have the little bullseye in the yoke, so I know they are fertile. Do I just need to wait until spring?