The precautions to be taken when pregnant with triplets include resting activities, pregnancy checkups, emotional regulation, and other matters. 1. rest activities: pregnant triplets usually pay more attention to rest, try to avoid doing strenuous exercise, try to choose the left side of the late pregnancy to sleep in the position, to the placenta to provide more adequate blood oxygen, is conducive to the development of the baby. 2. pregnancy maternity check: pregnant triplets usually have to do a good job of the time period of pregnancy maternity check, pregnant women have a greater chance of pregnancy complications, such as gestational hypertension, gestational diabetes, to closely observe the body changes, there are abnormalities in a timely manner to seek medical attention. 3. Emotional regulation: pay attention to emotional regulation during pregnancy triplets, do not often lose your temper, anxiety, depression, these are not conducive to fetal growth and development. 4. Other matters: during pregnancy, do not blindly use drugs, do not contact with radioactive substances, chemical substances. If you find any abnormal discomfort during pregnancy, you should seek medical treatment in time.