Most eggs you buy from the grocery store have not been fertilized. Hens lay eggs regardless of whether they mated or not.
It's more akin to eating the red carpet than eating an aborted fetus, but even that would not hold up well.
Whether they are fertilized depends on the facility that produces eggs and the population of chickens at the time. Cage system housing might produce almost no fertilized eggs because the animals are isolated. That system is however outlawed in some regions of the world because of animal cruelty and the requirements of high amounts of antibiotics to counter the spread of diseases. All other systems produce at least some amount of fertilized eggs, for example because of misgendered roosters becoming part of the general population until they get spotted.
Some people have successfully hatched some supermarket eggs and that is entirely plausible. They are not being hatched by the hens until the nest is full, so they may be laying around for many days before the hen starts sitting on them - they don't need to be kept warm immediately.
I feel like you are doing Easter eggs wrong...mine are plastic and filled with candy thats made with only the highest quality high-fructose corn syrup. They do come in some fabulous colors, so I guess there is that...