You're not going to be introducing much if any O2 into your beer at this point. You'd have to get O2 in there to even have to worry about it. Make your move as gently as possible, but if everything stays sealed you should be O.K.
Again, you have all or mostly CO2 in the fermenter, so Moving it around isn't going to introduce much if any O2 into your fermenting beer.
Keep it calm though.