I was at a mosque for intermediate Arabic class and a feminine question came up between us. One of the sisters is from Kazakhstan, a born Muslim; however, due to the Communist rule by once the Communist Russia, she has no knowledge of the Islamic customs, not even of Salah. So we are teaching her how to pray; we were trying to explain to her about when to pray and when one should not pray due to impurities. In other words, we were discussing exactly when a woman would be considered to be in the state of menstruation. Most of the sisters stated they stopped praying if they saw a spot and this was enough to be considered as being in a state of impurity. But with women sometimes this is difficult to determine as, at times, we have spots, but nothing happens. Other times, we know for sure. Should we stop praying when we are experiencing pre-menstrual cramps as a sign of the beginning of our cycles? We all have looked for an answer to this problem but haven’t found anything definite. Could you please help us resolve this matter?