Hi Annabel,
I've moved twice whilst my OCD has been really bad. With me, most worries are at their worst before I start facing the actual problem eg once I started the actual physical move I found I wasn't as anxious as I thought I'd be before hand. That doesn't mean I wasn't stressed at all, it just wasn't as bad as I'd feared. Also the physical exertion of lifting, carrying etc tends to work as a distraction for me.
As for feeling settled I'm not sure about that. I've lived in my current home for over 10 years, but it isn't the same as my last home, nor the one before that, and it never will be. But it is my home. I'm not sure what settled really means to me, just remember for you that your new home is where your family will be together and that will hopefully help. :original: