Help me , 40 days to go

So I went for my final wedding dress fitting today and I still Love my dress I just don’t think I can really sit in it though. I mentioned at my last fitting and was told not to worry I would be fine, I tried today and am struggling it’s a fit and flare dress and fits perfectly I just feel like I can’t move much on the hips though to sit . does anyone have any recommendations ? I am a worrier and know this is going to play on my mind now !