Is it permissible to conceal the loss of virginity from the fiancée's family, and suffice with informing only the suitor of that?

It is known that a woman may lose her virginity for many reasons, and the husband's intimacy with his wife and the disappearance of her virginity are matters specific to the couple. The customs prevalent in some countries to ascertain the disappearance of virginity at the time of marriage are ugly and impermissible customs.