Answer
Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
If menstrual bleeding extends beyond the regular cycle, it is considered istihadah, not menses. In this case, you should stick to your usual period duration (such as 7 days), avoid prayer during that time, and then perform ghusl. After that, you must resume prayer and other acts of worship, performing wudu before each prayer while bleeding continues.
In his response to your question, Sheikh Ahmad Kutty, a senior lecturer and Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada, states:
Why This Bleeding Is Not Considered Menstruation
The bleeding you are experiencing in this case cannot be considered as menses. It is rather comparable to bleeding of istihadah (abnormal bleeding). Therefore, the rules of hayd (menses) do not apply to your case. Rather you should follow the rules of istihadah.
How to Determine the Correct Duration of Menstruation
To be more specific, you are advised to look at the pattern of your menses prior to taking the pills, and simply follow the same.
In other words, you simply stay away from prayer, fasting, and tawaf, etc. (the things you are to avoid while menstruating) the same number of days (i.e., seven days in your case, as you mentioned).
When and How to Perform Ghusl After Menses Ends
After that time you are required to take a complete ghusl (ritual bath) just as you would do when your period completely stops.
Obligations After Ghusl During Istihadah
Following the ghusl, you must resume prayer, fasts, etc., as if you were totally free of menses. The only exception would be this: You need to clean your private parts and perform wudu (ablution) prior to each prayer. You are best advised to perform wudu as close to the intended prayer as possible.
Allah Almighty knows best.
Editor’s note: This fatwa is from Ask the Scholar’s archive and was originally published at an earlier date.