I have seen virgins that took up to 2 weeks to get bred and start laying.. possible she is there and just has not yet mated or has yet to start laying
I think you have done all you can do now but wait, the frame with eggs is a good idea, Good LuckI put another brood frame with eggs from another hive.
Maybe i have a failed virgin queen inside? what i need to do from now on?
Thanks
Randi