Is it obligatory to inform one's wife that she is not a virgin, especially after having a daughter with her and her being pregnant with another child, given the husband's suspicion and the absence of hymeneal bleeding on the wedding night, knowing that he resorted to another method to satisfy the family?

Do not pay attention to the whispers of Satan that seek to cause discord between spouses. Presenting a piece of cloth with hymeneal blood to the wife's family is a forbidden pre-Islamic custom that violates marital privacy. The hymen can be broken for various reasons other than sexual intercourse. You must think well of your wife and not bring up this topic with her again, as it will destroy trust between you and lead to great corruption.