NEM consider to implement SmartContract protocols?
i mean for a coin like pedro.
If i have understood right, pedro run on xem's blockchain, correct?
Almost correct. The coin you mean is called Petro, not pedro, and it is running on the NEM blockchain, while XEM is one of the coins on the NEM blockchain.
XEM is the native token to the NEM blockchain. Petro is running on the NEM blockchain yes. I have no information to which extent it is actually used right now.