How to calculate the algorithm when it meets a leap month?

If there is a leap month, such as this year's leap April, it will be counted according to the fifth lunar month.

Formula: seven, seven, forty-nine, ask when you are pregnant. Besides the mother's age, add nineteen, each single is male and each pair is female.

Example of algorithm:

My mother was born in1988,65438+February 65438+July, and was conceived in the middle of February in the lunar calendar of 20 12.

The calculation is as follows: 49+6 (pregnancy month in lunar calendar, around ovulation date) -3 1 (pregnancy age, nominal age)+19=43 If you are pregnant now, it is likely to be a boy.

(Actually, mother's nominal age is odd. If she is pregnant in odd months, she will have a daughter, and if she is pregnant in two months, she will be a boy. )