Dr michael thomas md (fertility specialist) actually advises that there are no methods to affect the sex of your child, including sexual position Medical researchers have made a new discovery about how a baby's sex is determined Prior to ovulation the mucus is more acidic which is not ideal for sperm and only the fittest can survive.
That is to say that the position in which you have sex won't influence whether you conceive a boy or girl But the truth is, while certain steps can increase your chances of getting pregnant, there's no evidence you can control whether you have a girl or a boy. For better or worse, most of us are still at the whim of mother nature when it comes.
Are there sex positions that influence the sex of your baby Some couples swear that there's a correlation between sex positions and a baby's gender, although there's little science to. From having your partner wear boxers to putting a nickel in your mouth during conception, legend has it that you can influence your baby's sex