I just went out to check water containers.  Found Sneak Pot in the top of the coop when I opened the slide door to check for eggs.  When I placed my hand inside Sneak Pot did the hen squat very well.  There were no other chickens in the coop so I am going to watch and see if I get another large egg.  If so, I will know for sure that HE is a SHE and that will be good.  I do not have any other chickens that should be laying such a large egg and one that is very white.  Other chickens out are Ameraucana and Araucana near this coop.  Thanks for all your comments.  From those who have Ancona chickens, it sure sounds like Sneak Pot is a pullet.