Nope. I usually have one in the morning and one at night. Yesterday I got one at about 2 pm, and one at about 4 pm. When I started supper at 5:30-ish, I heard one of them singing the egg song. A couple minutes later, my dd went to give them some mealworms, and she brought me a 3rd egg.
I'm thinking maybe it's because they just started laying within the last couple weeks. Maybe they're irregular at first? Anyway, they were all normal, fertile eggs.