The menstruating woman was declared clean after seven days of being unclean. She then takes a sin offering and a burnt offering to the priest and he makes atonement for her and then she can resume normal complete relations with her husband. (Leviticus 15:25-30). What is so important for us to see in this simile of the nation Israel to a menstruating woman is that the length of the tribulation which the earth will be defiled is seven years. At the end the Jews cry out to the one who sacrificed Himself as a sin offering for them to save them. The menstruating woman in the Mosaic Law was the one to perform the act of purification not the husband. So during the Tribulation it will be the wife of Jehovah (Israel) who is responsible for repentance not the husband (Jehovah). God will not act to force purification upon a sinner, they must change themselves. He provides the atonement of Himself for the sinners but, they have to come to Him. God longs for Israel to repent so that they can again be fully united to Him. Unfortunately it will take a massive seven year world war to cause the Jews to cry out to their Messiah Jesus, Blessed is He that comes in the name of the Lord (Psalm 118:26; Matthew 23:39).
https://youtu.be/JpxNyPYu5G8