Either that or my scales are broken

for over 2 weeks now every time I've got on the scales I've weighed EXACTLY the same! 9st0 3/4! Surely that can't be possible? Usually I see a couple of lbs fluctuation, but for it to be even the same fraction of a lb, it can't be right! I'm desperate to be into the 8st bracket and I'm just hovering there waiting for it to shift down!
I'm actually tempted to get on my mum's scales tomorrow morning just in case by some miracle it's different! I'm getting frustrated now!