Reasons for grumpiness during pregnancy: First, physiological factors, after pregnancy, the female body’s endocrine system is in the process of change, hormones have changed a lot, which in turn affects the person’s diet, sleep and mood. Second, the anxiety of pregnancy, after pregnancy all day long, worry about whether the baby’s health development is good, fear of pain during childbirth, fear of difficult delivery, fear of fetal malformation, fear of fetal gender is not ideal, etc., these will make pregnant mothers produce bad mood. Third, the influence of the relationship between mother-in-law and daughter-in-law, the relationship between mother-in-law and daughter-in-law is the most difficult interpersonal relationship since ancient times, sometimes feel that mother-in-law nagging, let people bored, mood will also become worse. Fourth, the boring life during pregnancy, before pregnancy in the workplace is a reigning figure, now live a pregnant life, stay at home all day, living a boring life, emotions are not released. In fact, grumpy during pregnancy, mainly because of the fear of giving birth to a baby after their own bad state, this time will be nonsense, and there is no thing to dispatch, so as a family member, must fully understand pregnant women, be patient.