Palmistry, which involves reading lines and shapes on the hands to learn about a person's future, does not hold scientific basis and is not a reliable way to predict the number or gender of children a person will have. Gender and the ability to have children depend on biological factors, genetics, and personal choices, which cannot be accurately determined through palm reading. Instead of relying on palm reading, it's recommended to consult with medical professionals or genetic counselors if you have concerns or questions about your reproductive health and family planning.