all is because she misses her "pack" she feels lonely, you can place some plush toys to "imitate" her brothers and sisters and of course her mother, also you can place a warm water bag to produce heat as if she where cuddled with them and a ticking clock to make heart beating sound, so she can calm down. as you said ignoring also helps (well in some cases) since there are some dogs that take advantage and (just like with kids) if they cry thay know youŽll rush over, which canŽt always be done.

also this will occur for a couple of days till she gets used to the fact that sheŽs the only dog and get used to different scenario.

donŽt worry i guarantee youŽll have a few more bad nights but then it will be ok, and now prepare to other stuff.

Good luck on your new pup