Please help me. Today, Tues, I have just received some brown leghorn eggs to put under my broody hen and I'm waiting on some lavender araucana's to add to them. How long can I keep the eggs before they go under the hen (I hope the others will arrive on Thurs, so it would be Friday before they would go under her). Also how do I care for them before they are put under the hen? I have them in an egg carton pointy tip down. Should I be turning them? Sooo excited.