What is Wrong in "testing" before marraige? *QUESTION OF THE DAY*

Often times, we see cases of men trying to get their women pregnant or just plainly have s*x with them to confirm they are fully okay before they marry them. Is there anything wrong with this? Yes! We all know the bible condenms pre-marital sex, but some men argue that marrying without testing is like buying without checking if the goods actually work! I would love us to share our ideas and learn. . . So is there anything wrong in testing before marraige?