Is the calculation method of giving birth to boys and girls accurate?

Many parents especially want to learn the calculation method of giving birth to boys and girls, because now many parents want to know whether their children are boys or girls, so they can learn some more accurate methods. But we should know that not every method is correct, and some methods may have very unscientific basis. Is the calculation method for boys and girls accurate?

Is the calculation method for boys and girls accurate? In fact, these formulas have no scientific basis and can be used to calculate and play. At present, the most accurate examination for boys and girls is B-ultrasound, but sometimes it is not allowed, and as long as the boy or girl is born, the dust settles. In fact, the baby was born with you. Whether it's male or female, it's your life. Some pregnant women may really want to know whether it is a boy or a girl out of curiosity, but they still suggest that the focus should be on supplementing nutrition for their children.

What are the calculation formulas for boys and girls?

Formula 1:

The double multiplication of pregnant lunar month+pregnant lunar birthday month-pregnant imaginary age+19=, and the mantissa is single, which is a boy; The mantissa is double. It is a girl.

Equation 2:

Pregnancy 68+ lunar month-the imaginary age when the mother is pregnant =, and the mantissa is single, which is a boy; The mantissa is double. It is a girl.

Formula 3:

The sum of the father's age at the time of pregnancy+the mother's age+the number of months of pregnancy (both real numbers) is divided by 3, and the result is an integer, the odd number is a boy, and the even number or zero is a girl.

Equation 4:

Father (year+birth month+birthday)+mother (year+birth month+birthday)+pregnancy month-19=, and the mantissa is single, and it is a boy; The mantissa is double. It is a girl. The first half of every leap month is the second half of last month and the second half of next month.

Formula 5:

49+ the lunar month when the mother was pregnant-minus the mother's age+19=, the mantissa is single, and it is a boy; The mantissa is double. It is a girl.

How to calculate the expected date of delivery and the time when the baby is born? This time is called "expected date of delivery", which is usually called pregnancy in October, but the month here is not the month mentioned in the calendar. Here, 10 is 28 days per month, so 10 is 280 days, counting from the first day of the last menstruation.

Calculation of expected date of delivery: add "9" or subtract "3" to the month of the last menstruation, and add "7" to the date. If the lunar calendar is used, the calculation method of the month is the same, and the date is changed to "15".

For example, if the last menstrual period is 1985 February 1: February 2+9 and the date is 1+7, then the expected date of delivery is 1 1.8 (85 years);

The last menstrual period was1April 198515: April 4-3, and the date was 15+7, so the expected date of delivery was 65438+1October 22 (86).

In addition, the expected date of delivery does not mean that this day will definitely be born, but only the approximate time. It is normal to be born within 2 weeks before or after the due date.

In short, it usually takes 38-40 weeks from the beginning of pregnancy to the birth of the baby. In addition, the expected date of delivery can only be used as a reference value to estimate the baby's birth time.

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