Does the menstrual period differ if the yellowish and brownish discharge continues for six additional days after the blood stops, without seeing the sign of purity, and if the duration of the period becomes 12 days? What is the ruling on missed prayers if it becomes clear that they were performed during a period of purity that was thought to be menstruation? And is a woman considered pure if she finds a small drop of clear discharge after the blood stops?

If the yellowish discharge is connected to blood, and the total duration of the blood and what is connected to it does not reach fifteen days, then all of that is menses. Purity is recognized by dryness (whether with clear discharge or not) or by the white discharge. Upon seeing one of the two signs of purity, one must perform ghusl (ritual bath), and thereafter, yellowish or brownish discharge is not considered menses. It is obligatory to stop praying when the yellowish discharge is connected to blood. If one stopped praying assuming it was menses, but it was not, then it is more cautious to make up those prayers to absolve oneself of responsibility.