I just had a revelation. I think I'll buy eggs online, mark them, and put them under my broody hens. Eat the ones I'm not sure are actually fertilized, and put the marked ones, that I KNOW are fertilized under her. Then I don't have a whole lot of un-fertilized eggs, or, as you said, exploding rotten eggs. Yeuch.....So thank you! That was awesome of you to mention it. I hadn't thought about it. Thanks! Maddi
Maddi, it's a plan, but I think you are missing one very important part that the others have tried to point out so well. You can't do anything unless your girls are already broody. Period. Nothing is going to MAKE them go broody just because you are ready. The only way to be absolutely sure that an egg is fertile is to crack it open - and then obviously that one can't go under the hen. Other than than you can't really tell anything until the embryo has developed enough to candle, and you sure won't eat one of those! You also need to be aware that using shipped eggs come with their own set of problems.....they may all be fertile, but shipping is not kind to them. Some get scrambled in the shell, some air cells detach and never reattach, and some just can't develop. While this is also true of eggs that a hen lays after a rooster has been, um, active, it's a huge problem with shipped eggs. I ordered 12 eggs, got 15, and only one hatched. One. And the hen that I put those eggs under had been broody, actively, obviously broody, for a couple of weeks before I ordered them. She sat the whole time, did exactly what broodies do, and got one baby out of 15. Not good odds.
I know that impatience is a trait that I share with you. I get an idea and no amount of persuasion, no obstacle, no advice - not even a dose of common sense - can sway me. Give me an argument for or against something and I'll come up with 10 excuses to continue on my own way.
But that doesn't apply to living creatures. Trying to make them do something they aren't physically ready for just because I want something isn't the right thing to do. Asking a hen to raise a brood of chicks is asking a lot from her....21 days of sitting, eating and drinking only rarely, sometimes not even leaving her nest to poop for days on end, is tough enough on her even though her hormones are telling her that's what she needs to do. She sure isn't going to go through all of that simply because you ordered eggs and marked them.
I'm glad that your chickens are still young. You have plenty of time to research more thoroughly what you want to accomplish. You have lots of time to learn more about raising what you already have. And you have time to spend some time making sure that when the day finally arrives and you have a lady who is telling you in no uncertain terms that it's time for her to raise a family - RIGHT NOW - then you'll be armed with as much information as possible to make the entire thing go as smoothly as possible for you, the broody, and the chicks. Good Luck!