I would be calling the Hospital straight away. My nurse told me you should feel at least 10 movements within 12 hours at least. Of course this does change but if I felt no movement in just one day I would have called them straight away so to have felt no movement for a week would make you worry like anything. I have heard when they get more squished in there they move alot less but a week is a long time.

I am sure it could be nothing but honestly go see them to get checked out and be on the safe side