You can try. I used eggs that were in there 2 weeks and they all hatched. I gave some refrigerated eggs to a friend for a broody and 8 out of 10 hatched for her.Curious how the fridge eggs turned out?
Just got rid of my rooster due to neighbors but my hen has gone broody. Wondering if I could pull a couple eggs from the fridge to put under her. Been in there 4-5 days I guess.