I had a hen go broody so gave her about 15 blue EE eggs. In a few weeks the number had grown to about 40 eggs and she couldn't cover them all. However she never pushed any out, just too many to cover. (Other hens were adding to her clutch!) I let her decide which to cover as I already had plenty of chicks.
If these eggs are important to you, you could put them in an incubator if you have one and see if they develop.