Colds in 30 weeks of pregnancy generally have little effect on the fetus, but not absolutely, depending on individual circumstances. 30 weeks of pregnancy is the stage of late pregnancy, at this time the fetus has developed, common cold is a self-limiting disease, healing in about a week, without the use of drugs that have an impact on the fetus, the fetus is generally not affected. 30 weeks pregnant is a severe cold, there is a long period of fever, cough, cough and other symptoms, the inflammation is more serious and take more drugs, may have an impact on the growth and development of the fetus, such as intrauterine growth retardation, fetal malformation, these are not absolute. 30 weeks pregnant with a cold is recommended to go to the hospital under the guidance of the doctor safe use of medication to improve the symptoms, and then also to do a good job of pregnancy checkups to find out whether the fetus in the uterus development of any abnormalities in the manifestations.