oooh, I'm not sure how to do that either-but I did want to mention you may get more help if you post this question in the "How-to Questions" section.
I think you could just pull it through the loop over and over till you get it back up to your current row. But I'd wait for someone else's advice, because I've not been knitting all that long and I always call my dmom when I have a problem
lol-she's always the voice of calm and helps me not panic.
Congratulations on your new grandbaby!