Whether you have a girl or a boy is determined by chromosomes, not before or after ovulation. Therefore, it is not possible to change the gender of the child by changing the ovulation period.

If you want to get pregnant, the best way is to maintain a healthy lifestyle, including a balanced diet, moderate exercise, adequate sleep and avoiding smoking and alcohol consumption. You can also try ovulation-stimulating drugs, which can help women release more eggs during ovulation.

Regardless of whether you have a girl or a boy, you should cherish your own life and that of your children, and provide them with a good education and life.