Do the sometimes yellowish or whitish-yellow discharges that appear after dryness on the seventh day and recur in every cycle count as menstruation after the seven-day period has ended?

If your habit is seven days and you see purity before they end, then perform ghusl. If you see yellowish or brownish discharge within the seven days, consider it menstruation. However, after your habit ends and you see purity, do not pay attention to yellowish or brownish discharge, and do not consider it menstruation, for yellowish and brownish discharge do not establish a habit. What you see of yellowish or brownish discharge after purity is considered purity.