The effect of cold medicine on the fetus in early pregnancy is unknown, you should pay attention to the obstetric examination, if there is no problem there is no big image. Early pregnancy is an important stage in the formation of fetal organs, if affected by drugs, physical, chemical and disease factors, it will increase the chance of fetal malformation and miscarriage. Cold medicine taken in early pregnancy must be taken seriously, and regular maternity checkups should be conducted. At 22-24 weeks of pregnancy, a three-dimensional ultrasound should be performed to be able to understand the development of the fetus, whether there are malformations, etc.. There is no need to be overly anxious, nervous or afraid of taking cold medicine in early pregnancy, as long as you are on time for your maternity check. It is important to note that the entire period of pregnancy should not be abused, if the body has symptoms of discomfort, be sure to use medication under the guidance of a doctor.