Question 25: There is a kind of a table circulated widely among women bearing the so-called “Chinese Gender Prediction Calculator”. It specifies whether the fetus is male or female through the age of the mother and the solar month in which conception took place (a copy of the paper is attached to the question).
Is it possible for doctors to determine the gender of the fetus? What is the ruling on such and similar calculators? May Allaah reward you with the best for benefiting Islaam and Muslims.
Answer: No one but Allaah (Glorified be He) can know the gender of the fetus before it is fully formed. However, after the fetus is fully formed, its gender can be identified through medical rays, something which Allaah made within the boundaries of human capability... read more here.