It is not good to send three periods, because it means silence. Different people may have different understandings of this silence, so this should be analyzed in detail. At the same time, sending the third issue may also make people feel embarrassed or confused, and feel that your information is not finished, not clear enough or lacking in substance. In addition, too many menstrual periods may make people feel bored or impatient and feel that you are not warm or friendly enough.