What must a woman do concerning her missed fasting days, given that she broke her fast during her first pregnancy due to hardship, and during her second pregnancy for breastfeeding, and then became post-childbirth (nifas)?

If you delay making up the days of Ramadan without a valid excuse, you must make them up and feed one poor person for each day, unless you were unaware of the impermissibility of the delay, in which case no expiation (fidyah) is required of you. Pregnant and breastfeeding women who break their fast solely out of fear for themselves, or for themselves and their child, are only required to make up the days. However, if their fear is solely for the child, the majority of scholars obligate them to both make up the days and offer expiation.