Scriptures say that Mary conceived. That is not in vitro.
Matthew 1:20 and Luke 1:31
But while he thought on these things, behold, the angel of the Lord appeared unto him in a dream, saying, Joseph,
thou son of David, fear not to take unto thee Mary thy wife: for that which is conceived in her is of the Holy Ghost.
And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name Jesus.
Also Isaiah 7:14 ~ Therefore the Lord Himself will give you a sign: Behold,
the virgin shall conceive and bear a Son, and shall call His name Immanuel.