Our daughter came home at 8.5 months of age. The first few days and nights were definitely difficult. She cried and seemed to be searching the environment looking for someone familiar. She was calmed by music (which continues to intrigue, excite and calm her now, too). After the first 3-4 days, she was more calm and even smiled a few times and each week got better. Sleep issues continued for several months (and still occur, although I am unsure if this is as much attachment issues still, or just her personality).
She has been home 10 months and she is wonderfully adjusted, doing great and I have people who comment all the time about how happy and friendly she is and how much she loves her mommy and daddy
I do think alot depends on your baby's personality. I think our daughter definitely grieved and was confused but she did great considering and continues to do extremely well. She went through a time at 12-14 months of age where she was very clingy to me and still is that way at times, but again not sure if that is adoption related or just typical.
We did hold her alot, carry her in a sling, only let me or my husband feed and bathe her, and just showered her with as much affection and attention as we could. There have been great lists on this forum in the past about promoting bonding and I found them helpful as well.
Good luck and best wishes for a smooth transition.
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Dianne
mom to two precious girls
Katelynn "Katy"
born 1/1/04, referral 2/5/04, together forever 9/20/04
Elsa Jade
born 5/16/06, referral 5/23/06, together forever 10/1/06