The Greek word used in the New Testament for “baptism” means to dunk, plunge, or immerse. Christian baptism is the immersion of a believer in water in the name of the Father, the Son, and the Holy Spirit. It is a verbal and visible declaration both to the Church and the world of a believer's dedication to follow Jesus (Romans 6:4).
It is an act of obedience symbolizing the believer's faith in a crucified, buried, and risen Savior, the believer's death to sin, the burial of the old life, and the resurrection to walk in newness of life in Christ Jesus. It is a testimony to his or her faith in the final resurrection of the dead (Matthew 28:18-20).
New Testament or “believer’s baptism” has only one prerequisite–someone who has trusted in the life, death, and resurrection of Jesus Christ alone for their salvation. You must be born again (John 3:3). You are to be baptized after you have been saved.
No, you should be baptized as soon as possible after you have believed and received. It is very clear that Jesus told His disciples to baptize others who commit their lives to Him (Matthew 28:19) . Being baptized immediately fulfills all that Jesus expected. Have you believed, trusted, relied upon Jesus with all your heart? Then there is no reason to wait.