good luck lab.lover, everyone has given sound advice already, so I can't add much, but after a few days of whining she will soon settle, and it's definitely best to ignore her until she settles, or she will have you wrapped around her little paw!
On our first night with Jack, now almost 3, I think I cried even more than he did! If my partner hadn't told me to stay put in bed and tolerate it, I would have been down there sleeping with him! He is, nevertheless, a really clingy dog, but then that's definitely something to do with how I have raised him! He's my first dog, so I am even now still learning!
Lots of love for Ruby, and wishes for years of happiness!