How to give birth to a boy or girl through fortune telling?

Solution: first count 49 on the abacus, add the number of months the mother is pregnant, and finally get the number. Excluding the number of years when the mother was born from the total, every woman is male and every couple is female. If a woman is an only child and a man is born in pairs, there will be changes in early birth. If the number is forty-nine, if it is the first month of pregnancy, it is fifty, and the mother is thirty-one. Excluding the mother's year, this figure is only 119, and nine are single and male. Everything else is like this.

7749, ask when the mother was born (the lunar month of conception), subtract the mother's birth year (the mother's one-year-old age), add 19, use a nine-point integer (that is, divide the result by nine), and the rest are men and women.

For example. If a 29-year-old person is pregnant in February of the lunar calendar, the formula is: (49+2-29+19)/9 = 41/9, and the remainder is 5, giving birth to a boy.

Note: 1. When I say lunar month, I must follow the actual and accurate date. Because, on some days, the lunar calendar and the solar calendar are one month. There were several days in July, 2005, which were both July in the lunar calendar and July in the solar calendar. It depends on the date of your pregnancy. It was the day of conception. Not the last menstrual day.

2. One year old.

3. If it can be divisible by 9, the remainder is 0, which is even.