Hi...and welcome. Congratulations on the arrival of your new baby!
I'd put myself in the place of the dog and try to see this change from her possible perspectives. Since you have only had her for 2 days, she may still be unnerved by the change. A new home at 7 years old is quite a change, and she may be more than a little a bit confused about why things have changed so much. She may just need time to settle in and learn how much you love her, and how things work in her new forever home. Your consistency and kindness, staying calm and patient and giving her the understanding she needs until she adjusts fully, should help her relax and learn to fit into the family.
It is wonderful that you are giving her a new home and family to love and care for her. I think she will appreciate the time you take and the attention you give to her. She may surprise you. Good luck!
