They told me that's a possibility but (1) I didn't wanna be stuck with a foreign/sucky calculator in my Calculus BC test since it has parts that require you to

They told me that's a possibility but (1) I didn't wanna be stuck with a foreign/sucky calculator in my Calculus BC test since it has parts that require you to use a calculator and (2) they said there is no guarantee, so I didn't wanna take my chances (what if I'm late and they're out of all extra calculators)