Solidity Smart Contract Issue Resolve needed

We are attempting to put a stop sell and stop buy variable in our smart contract. When we create the pair on Uniswap our token XXX/ BNB the execution of these function work. But then if someone creates a pair with BUSD that pair takes precedent over the first one and negates all of the variables on our contract if the price lower then our main pool and the transactions will go thru that pool. How can we stop this from happening?