What is the expiation for a woman who engages in sexual intercourse during the daytime in Ramadan willingly, without being coerced, given her inability to emancipate a slave or fast for two months due to pregnancy, and is it permissible for her to feed sixty needy persons?

What you did is a grave sin. The ruling (fatwa (definition)) with us is that kufara (expiation) is not obligatory upon women. We advise you to frequently seek Allah's forgiveness (istighfar) and perform good deeds, for Allah transforms the bad deeds of those who sincerely repent into good deeds. Allah Almighty says: "Except for those who repent, believe and do righteous work. For them Allah will replace their evil deeds with good. And ever is Allah Forgiving and Merciful."