One of many beliefs of conceiving a child is the pH level of the vagina can potentially determine the sex of a baby. According to Ovulation-Calculator.com, the belief is that female sperm is more adaptable to a vagina with a lower pH level than male sperm. In theory, the sex of a baby can be picked with alterations to the pH level. While this belief may not be scientifically supported, it can still be an exciting experiment for any couple. Vaginal pH test kits are readily available for those couples interested in this practice.
Remove your trousers and undergarments. Sit down on a comfortable chair or lie down on a bed.
Take a pH test strip out of the box of a vaginal pH test kit. Hold onto the very tip of the strip and do not let it touch any other object, as it may alter the results.
Spread the labia -- or outer lips of the vagina -- with one of your hands. Insert the pH test strip into your vagina and hold it against the vaginal wall for five seconds.
Remove the strip and wait for it to change colour. Compare the strip's colour to the colour chart included in the test kit. The corresponding colour should clearly indicate the pH level of the vagina and cervix.