Amanda, sorry to hear that this is confusing so much upset for both you and your DD.
My DD is 7, will be 8 in Nov, and has started the whole I don't want to go to school or wants to go but cries when I go to leave etc.. Turns out she was worried about me after my recent laparoscopy and she didn't want to leave me by myself.

My DD is quite content on being an only child, she gets upset if we talk about having another baby, so I'm concerned how she will react with the news when it (hopefully) does happen one day soon.

We have already started telling her that we will be moving her into the bigger spare room (though she is unaware it will be to make her much smaller room available for a future sibling) and that she will get to pick out color charts and colours for the room, possibly a new bed and bedside tables etc.. What marydean suggested with doing a minor redecoration to her room may be a positive for her too.

Goodluck with it all, I will be keeping an eye on here to see how things go

Nic