Q: With regards to Qadha fasting for a woman who breastfeeds: Can someone pay in fasts before the commencement of Ramadhan? e.g If she plans on fasting every alternate day and knows she’ll have 15 days to pay in, can she do this before she’s missed the fast?
A: If you mean that can she keep those fasts before time, then no, this wont be valid in all Madhabs.
Moulana Yusuf Laher