How to calculate the table for boys and girls ~

Oh, this is not necessarily accurate. Don't believe it too much! The algorithm takes the age of a woman as a nominal age, and the month of pregnancy is the lunar month. Give a suggestion, don't force boys and girls too much, the healthy growth of the baby is the most important. And this watch is just a psychological comfort, not absolute! The greater the hope, the greater the disappointment. Some people think it's accurate, others think it's not. Oh! Get what you want