Well, congradulations by the way.
As long as I know you are gone I don't have a problem with extended leaves like that. Anything over five turns without a notice and you get booted, but you can go past five turns as long as I know ahead of time you are leaving and planning on returning.
However, that is almost three full weeks. Assuming your new marriage survives being cooped up with her for three weeks, I am not sure your empire will with you gone that long. I would advise you try and find a replacment player for while you are gone. If you can't find one I will try to find one for you.
I don't suppose the new bride would let you take your computer with you? Nah....
Geoschmo