The effect of drinking diet tea on pregnancy depends on the main ingredients inside the diet tea. Weight loss teas all contain diuretic or appetite suppressant ingredients, and if they are drug-free, they will not adversely affect the growth and development of the fetus. But this situation is not absolute. A small number of women, even if they do not drink weight loss tea, may be affected by bacteria, viruses, radiation, pesticides, etc., which can also cause embryonic sterilizations, spontaneous abortions, intrauterine growth retardation and fetal malformations. Therefore, if a woman wants to have a baby after pregnancy, it is best to strengthen the obstetric examination, do NT examination, early Down screening and mid-pregnancy ultrasound macro-anomaly examination on time, and dynamically observe the growth and development of the fetus. It is also important to keep your mood relaxed after pregnancy, otherwise it will also affect the growth and development of the fetus.