I know that to be true for I am a ghost who traveled back in time and possessed my younger body... 
I don't think she can posses a vampire... Everyone she's possessed in the past has been living. I mean, I suppose the writers could have her do it, but it wouldn't make much sense to me.

And convienently forgetting it was her wolf that murdered her ex-boyfriend, that it was her choice to run off with those purebreds before, etc.I kind of wanted the alt timeline to take up the rest of the show, but it'll be interesting to see where they go. Oh, and the lack of Nora was a reeeeaaal breath of fresh air![]()
I hope they have a reasonable explanation for that.
I think pregnancy does make sense for most of it. Having a werebaby would make things even more hectic.