I did my fair share of thinking myself lately, and i come to the conclusion that there is never the right time, life always throws something unexpected at you... and then what ? so i thought what the eck...
besides - i would be happy to have you around in December, i have to admit, as that is also my month when we will be starting ...

All the best ! i am sure you will be fine either way, one month is not a big deal...out of a life time....always look at the big picture ...