What denomination is that?
If God carefully describes 6 days of creation and points out specifically that the rest of the universe was made on the 4th day, then deciding not to believe that is a step away from the Word of God. Anything that is miraculous is not natural science. Science is blind to miracles.
Of course, but the Universe itself is a miracle of God, and so is everything in it, regardless of how many natural explanations science discerns.