1. Predicting the Gender of Your Baby Based on Parental Ages
To ascertain the gender of your child, first, determine the accurate lunar ages of both parents, then add them together. If the sum exceeds 40, subtract 40, and continue subtracting until the value is less than 40. Once you have a result less than 40, subtract 9, then 8, and repeat until the result is less than or equal to 8 or 9. Depending on whether the result is even or odd, you can predict the gender of your baby as follows:
- If the result is even: If you conceive and give birth in the same year, you'll have a boy (conceiving at the beginning of the year and giving birth at the end of the year within the same year), or vice versa if you conceive in the previous year and give birth in the current year, you'll have a girl.
- If the result is odd: If you conceive and give birth in the same year, you'll have a girl (conceiving at the beginning of the year and giving birth at the end of the year within the same year), or vice versa if you conceive in the previous year and give birth in the current year, you'll have a boy.

2. Predicting Your Baby's Gender Based on Mother's Age and Conception Month
This method relies on the Lunar Calendar, using the mother's age and conception month to determine the baby's gender. The table below shows the mother's age vertically from 18 to 45 and the conception month horizontally from January to December in the lunar calendar. To determine the baby's gender, simply find the corresponding row for the mother's age and column for the conception month, and you'll easily know the baby's gender. For example, if the mother's lunar age is 30 and the conception month is March, by matching the respective row and column, we can determine that the baby's gender is female.

3. Predicting Your Baby's Gender Based on Mother's Age and Birth Month
Somewhere, I came across a folk song that goes like this: '49 ancient words have foretoldThe month of birth they unfoldSubtract the mother's age, a simple measureAdd 19 for a moment of pleasureCalculate the full moon's age so preciseEven means a boy, odd a girl, it's concise'Do you understand the meaning of this folk song? To simplify, let me explain like this:Let the mother's age be X, the birth month be Y, then the formula is as follows: (49 + Y - X + 19)/2 = (68 + Y - X)/2. From here, simply input the mother's lunar age and the lunar birth month to get the result instantly. If the result is even, you'll have a boy, and if it's odd, you'll have a girl. The following specific example will help you understand more clearly.Let's say the mother's lunar age is 29, and she'll give birth in the 9th lunar month. Applying the above formula, we get: (49 + 9 - 29 + 19)/2 = 24. The result is 24, which is even, so you'll have a baby boy. After determining the birth month, we'll combine it with the Lunar Calendar below to determine the conception month for predicting the gender of the baby.

