Does the first day on which intermittent brown discharge appeared necessitate abstaining from prayer, or not?

If the brown spots appear during the customary period and are connected to the blood that follows them, then they are considered menstruation, and prayer and fasting are prohibited during that time. However, if they are separate from the blood, then they are not considered menstruation, and the woman should pray and fast during that time, performing ablution for each prayer.