If a menstruating woman's period comes early, what should she do?

Question : The early arrival was something she used to see at the end of the month, but she saw it at the beginning.

Answer : We say: wait. If it happens three times, it is menstruation; if it does not happen three times, it is nothing. However, the correct view is that it is menstruation. If her custom was for it to come at the end of the month, and then in the second month it came to her at the beginning of the month, it is obligatory for her to sit, and she does not pray, does not fast, and her husband does not come to her, because this is menstruation.