[wemple2]

I wish you all well, hope it works out and they learn to love one another.
I don't know the story of where she was adopted from...she obviously is not spayed. But do the previous owners give any indication that she could possibly be pregnant? Did they have other dogs? If you can post a picture of her and her belly/nipples...I'm sure many here could give further advise. I've never had a female let alone a pregnant one, so I am of no help there.
Be patient, I know it's hard...you did the right thing...she's going to fit in just fine. Wait and see. Now try to relax and get some rest yourself...they can tell when you are stressed out.