Prodigal ever saved?

I termed myself as a prodigal christian. While, there is a possibility that I was never saved in first place. Acts 2:39 "The promise is for you and your children and for all who are far off—for all whom the Lord our God will call." I was part of a Christian family and like most Christian families, they have "lost children" who were taught about Christ but never really accepted Christ from the heart. Acts 11:14 (NIV)

He will bring you a message through which you and all your household will be saved.

Acts 16:31 (NIV)

They replied, "Believe in the Lord Jesus, and you will be saved—you and your household.

I have relatives who are not saved. I also have relatives are who saved. Assuming that majority of the families around the world will have ONE person who is in Christ and truly saved. If one person is saved, then God will work within that person's family (all generations) to convict their hearts to accept Christ. Was I saved from my heart before I went "prodigal"? Maybe but looking back, I studied my heart because God meets me in my heart daily. Was my heart pure with the Holy Spirit or was my mind thinking I am a Christian? Its really interesting. I am beginning to think I was never "truly saved" but I did follow Christ. When I came back to God, I made sure that my heart is bearing fruits from the Holy Spirit rather than works. Am I bearing fruits because I think I am saved and performing works so that they can see I am working for God? OR..... am I bearing fruits from my heart and actually serving God in spirit that others can see me through my heart. Romans 2:29 (NIV)

No, a man is a Jew if he is one inwardly; and circumcision is circumcision of the heart, by the Spirit, not by the written code. Such a man's praise is not from men, but from God.

2 Corinthians 3:2 (NIV)

You yourselves are our letter, written on our hearts, known and read by everybody.

2 Corinthians 3:3(NIV)

You show that you are a letter from Christ, the result of our ministry, written not with ink but with the Spirit of the living God, not on tablets of stone but on tablets of human hearts.

Something to ponder. Right now, it does not matter whether I was saved in the past, because I am saved TODAY. I am serving Christ from my heart. Amen.