As I unterstood in other answers (see https://bitcoin.stackexchange.com/a/8922/74399), a transaction is added to the blockchain, once a new block has been found/generated. The average time between two blocks is about 8 minutes regarding the past 24 hours.
Does this mean, that my transaction will take an average of 8 minutes to become visible in the blockchain? Is it known in the network as an "unconfirmed transaction" (so it's save)?