If I saw blood at night – at isha time. The next morning I didn't see blood and performed ghusl – after fajr but before dhuhr. Do I need to make up any prayers? If yes, then which ones? If I haven't been making up such prayers, please guide me as to how can I calculate my missed prayer for each cycle ever since I started menstruating, between the time I saw blood and the time when I confirmed I was pure.
بِسْمِ اللهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Most Gracious, the Most Merciful
What you have done is incorrect. When you see blood at Isha time, then you decide to sleep, you must wake up before the time for Fajr enters to check if you have stopped bleeding. If you have, you must perform ghusl and pray Isha right before the entry of Fajr and thereafter pray Fajr.
As for whether you need to make up your prayers, it is not necessary for one to attempt to backtrack in their menstrual cycles and try to figure out when they had stopped bleeding and how many qadha prayers is due upon them. However, if due to previous menstrual habits, you are sure that your period had ended at the time it habitually does, then you should make qadha for the prayers you did not perform after your period had ended.
Only Allah knows best
Written by Alimah Sabrina al-Faarsiyyah
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham