no. sperm containing male and female chromosomes are made in each testicle so you still have a 50% chance of having a boy or girl (unless you adopt a child).
does having one testicle cause having one sex of offspring. my wife and i want to have a girl we have two boys. i have one testicle and it is not undesended and has been searched for as a child and adult. is it possible that one testes is related to one specific sex of child.