The formula of giving birth to boys and girls in single and double months

The formula for twins is: seven seven forty-nine, plus month, plus mother's birth year, plus one nine.

Boys and girls have long known the formula: 7749 (49). Ask your mother when there will be (plus the lunar month of ovulation month), subtract your mother's age (minus the nominal age), add 19, and then divide by 2. (Don't round off, just look at the figures before the decimal point.) Even little princesses and odd little princes. All ages and months here refer to the lunar calendar date.

Even numbers are women and odd numbers are men. Folk calculation method: two years old and one month, one year old and two months pregnant will give birth to a boy, and vice versa. Hot and sour girl: It is said that the expectant mother loves sour food after pregnancy, indicating that she wants to have a boy. If she likes spicy food, she wants to have a girl.

Probability of having boys and girls:

Theoretically, it is male and female 1: 1. If both families have brothers and sisters, both of them are male, and the next generation is female; One man and two women, the next generation is two men and one woman, very accurate. Whether it is a boy or a girl or an individual, it should be a habit related to a certain probability.

If men drink less beer, the chances of having a boy will increase, especially when men are growing up, they should pay special attention not to drink carbonated drinks such as Coca-Cola, because these carbonated drinks can inactivate the Y chromosome in male sperm, thus reducing the chances of having a boy.