The angel answered (Mary), “The Holy Spirit will come on you, and the power of the Most High will overshadow you. So the holy one to be born will be called the Son of God” (Luke 1:35 – http://bit.ly/2QmhxVs).
All those years ago God trusted a teenage girl with Jesus, the ‘good news of great joy for everyone’ (Luke 2:10 – http://bit.ly/2QnMUPe). Most adults would see that as pretty risky. But God thought that it was the best idea.
God is still trusting teens (you included) with the news about Jesus. “And how can they believe in him (Jesus) if they have never heard about him?” (Romans 10:14,15 –http://bit.ly/2QmhN6S)