then the word connatation wouldn't exist, but I won't get to into that age matters virginality. The fact is that Mary was pure(virgin) until she had Jesus.
Pried is right "The angel answered, The Holy Spirt will come upon 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)"
Apart from Mary and Joseph people thought Jesus was normal in his early years. If they knew he was the son of God then he would of been taken off the streets or killed.