Let's suppose there are 200 people an Y/A who have friends with pregnant moms, let's suppose that some of them (you decide if it's going to be all of them, half of them...) predict the sex of the baby.
About half of them are going to be correct. You are one of those people.
How to test your ability to predict the future:
Write down forty predictions:
that can be tested within a week (they expire after a week).
Ten that expire in a month
ten that expire in two months,
and ten with specific dates.
What success rate would you expect for a person who can foresee the future, and what would the rate be for a person unable to see the future.
After two months, you will have your score.