Would you rather want to wait till marriage to intimately know your partner or will you rather know everything there is before marriage?
It doesn't matter if it is right or wrong nowadays, what matters is if the both parties agreed to have sex before marriage or after they get married. Keep Christianity aside, I'm also a Christian too but I do not see any wrong if they both agree. One of the main reason why some people get married is because they want to have kids of their own, so those people will not want to end with a woman or a man that can not get them pregnant or a woman that isn't fetal. That is why I do not see any wrong in having sex before being married or after getting married.
Did I get yiu right. How does one use sex to know if his future partner is fertile or not. You have taken this discussion into a different dimension because all woman can have sex but not all of them can bear children. So, are you saying that you will first get your wife pregnant before you will marry her. I don't think that sex before marriage will make a barren woman to be fruitful.