Depending on the breed they will lay more or less. Even a high production breed won’t lay every day. It also depends on their age—if they have just started laying or if they’re older they might not be as predictable. If you’re in the northern hemisphere and it’s still shorter daylight hours I’d say 5-7 eggs is pretty good. There is, however, a way to check their vent to see if they are laying but I don’t have experience with that so hopefully someone who knows more will chime in.