What's the name of the child who is slow in fortune telling?

The fortune teller said that I didn't have a son until I was 30. Is it true?/You don't say.

The fortune teller predicted that you would not have a son until you were 30, and relaxed the time for several years. It is possible for you to have a son for so long. However, the fortune teller's words are not scientific. Whether a son can be born depends on the health, fertility and pregnancy time of both husband and wife. The fortune-teller can say that he just said casually, and the vague answer given lacks scientific basis.