What must I do if I delayed making up days from the previous Ramadan until the current Ramadan approached, and then menstruation surprised me while I was trying to make up those days? Do I only owe making up the days (qadaa'), or do I owe expiation (kaffara) and making up the days, knowing that I am young and do not have money for expiation?

One should hasten to make up for missed Ramadan fasts. The fidyah (expiatory feeding) is only obligatory for those who delay making up the fasts without a valid excuse. As for the one who has a valid excuse, nothing is required of him except to make up the fasts. The meaning of the continuous excuse is its continuation from the time when making up the fasts became immediately obligatory, i.e., if there remains of Sha'ban only the amount of time that suffices to make up the fasts before the advent of Ramadan.