
hi Alli & welcome to Champdogs.
your girl still has 2 weeks to go, therefore it's not always common to see movement at this stage.
" & she should be getting really fat" - you don't want her to put excess weight on as this will make her overweight & unfit for the birth, you need to increase her food slightly during the last couple of weeks, but don't overfeed her. What you ideally want if she's in whelp is for her body shape to change as her abdomen gets larger, which sounds like what is happening.
As you didn't get her scanned, I guess you'll have to wait & see, but from experience - all bitches carry differently. I have a FCR that was 8 weeks in whelp & if you saw her you'd have said she's missed or she's only got 1 pup in there, a week later she had 10 healthy big strong pups, she just hid them well.
Bit like humans, some people look good & slim with a neat bump - others get very big!
Good luck with her.