Is the questioner considered to be among those to whom the rulings of a woman with an irregular menstrual cycle (ṣāḥibat al-‘ādah fī al-ziyādah wa al-nuqṣān) apply according to the Hanbalis, knowing that her menstrual period is irregular, comes every 50-60 days, and lasts for seven days? And if blood comes down after ghusl and continues intermittently, and this recurs for several days making it difficult to complete prayers, must the prayers of those days be made up? And is the blood that comes down after the fifteenth day of menstruation and before the shortest period of purity (aqall al-ṭuhr) considered menstruation or istihadha (non-menstrual bleeding), especially since she takes birth control pills to regulate her cycle?

The customary view among the Hanbalis is that a woman whose menstrual cycle and days are known is considered "customary." However, the questioner is not customary. The fatwa relies on what some Hanbali verifiers, such as Muwaffaq Ibn Qudama, considered more probable: that any blood a woman sees during a time suitable for menstruation is considered menses. If the bleeding exceeds 15 days, the woman is considered to be experiencing irregular bleeding (istihada). In that case, she should rely on valid distinguishing characteristics if present. Otherwise, she should consider six or seven days from the beginning of the month as menses. The minimum period of purity (tuhr) between two menstrual cycles according to the Hanbalis is thirteen days. So, if the purity lasts for 13 days, any blood seen thereafter is menses. If the blood appears before that, she is considered to be experiencing irregular bleeding.