There is no sexual position that determines gender. If you are determined to have a boy, you will need to see a doctor who uses sperm/embryo sorting techniques.
It has nothing to do with sex styles and all depends upon God that whether He blesses you with a boy or a girl. Try to accept whatever baby you are blessed with.
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them