Does a man divorcing his wife with three pronouncements make her unlawful for him, especially with the first divorce occurring during her menstrual period — which she initially denied then admitted — and the third divorce occurring under duress for fear of him being reported to the police?

Firstly: A servant is not held accountable for intrusive thoughts and notions unless he acts upon them or speaks them. If he dislikes them, he will be rewarded for it.

Secondly: The divorce of a menstruating woman is not considered valid by some scholars.

Thirdly: If a man is forced into divorce under a threat that is likely to be carried out, such as the wife threatening to report him to the police, which would lead to his imprisonment and a fine, and he finds no way to avoid it except by divorce, then the divorce is not valid because it is a divorce under duress.

Fourthly: It was a mistake to question your wife about her past. She is not obligated to inform you, and indeed, it is not permissible for her to expose herself. You should apologize to her and explain that your actions were unintentional. Take measures to prevent her from being harmed, and appreciate her patience and care.