The time frame is everything, and you don't give us much to go on. Can you date each action with the hive? You say you studied last week, then waited two weeks. I can't keep up with your time frame.
7 to 8 days after the split, there should have been queen cells. 14 days after the split, there would be NO queen cells, as she had already emerged and destroyed all other cells. From the 25th day to the 35 day, you should see new eggs.