I am worried about having enough yarn, lol, but we'll cross that bridge when we come to it!
The other thing is that, as other people noted, it's a bit tight in the armholes. For now I am trying out just adding extra rows in the shoulders. Hopefully that won't mess up the look of the neckline too much by lowering it. Of course, if I was desperate I could always use the daring technique of my friend at From the Purl Side (a new knitting blog I'm enjoying). She cut her yarn- so brave, so brave!
But seriously, I don't get knitting from the bottom up. Way too nerve-wracking, lol. Fingers are crossed this thing turns out!