Leviticus 20:18
If a man has sexual intercourse with a menstruating woman and uncovers her nakedness, he has laid bare her fountain of blood and she has exposed the fountain of her blood, so both of them must be cut off from the midst of their people.
Leviticus 15:24
and if a man actually has sexual intercourse with her so that her menstrual impurity touches him, then he will be unclean seven days and any bed he lies on will be unclean.
Leviticus 18:19
"'You must not approach a woman in her menstrual impurity to have sexual intercourse with her.
Ezekiel 18:6
does not eat pagan sacrifices on the mountains or pray to the idols of the house of Israel, does not defile his neighbor's wife, does not have sexual relations with a woman during her period,
Ezekiel 22:10
They have sex with their father's wife within you; they violate women during their menstrual period within you.