If there's pollen available they'll bring it in.Sometimes they do it in waves.If you can between 1pm and 3pm CST go out and closely observe the hive entrance.You should be able to see them bringing it in more easily.I,m not sure when your nectar flow is you can Google it.Might give them a pint of sugar syrup see if they take it.The queen usually won't lay more brood than they have food,not to common for her to do so.