'Menstrual' in the Bible

If she bears a female child, she will be impure fourteen days as during her menstrual flow, and she will remain sixty-six days in blood purity.

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.

"'You must not approach a woman in her menstrual impurity to have sexual intercourse with her.