Is your marriage valid after committing the sin of adultery during menstruation, with repentance and without mention of expiation?

If the expiation intended is that for intercourse during menstruation, some jurists have held it to be obligatory, amounting to a Dinar or half a Dinar, while others consider it not obligatory. However, if intercourse occurred through fornication (zina), some have also held expiation to be obligatory. The more cautious approach is to pay the expiation. A Dinar is equivalent to four and a quarter grams of gold, and the expiation is optional: a Dinar or half of it.