Does Allah accept repentance after repeated mistakes of having intercourse with one's wife during menstruation, and how should one repent?

Intercourse with one's wife during menstruation is one of the gravest sins. One must cease this act, offer sincere repentance, and seek forgiveness, in addition to performing expiation. For whoever repents sincerely and performs righteous deeds, Allah will forgive them. Allah Almighty says: "But indeed, I am the All-Forgiving to whoever repents, believes, and does righteousness, and then is guided."