Having a viral infection or taking some medications during pregnancy may be associated with autism, but there is no research to confirm which stage is more likely to cause autism in the fetus, and pregnant women generally do not get autism.
The causes of autism are complex and are currently thought to be related to factors such as genetics, viral infections during pregnancy, and abnormal perinatal factors. Infection with rubella virus, cytomegalovirus, varicella-zoster virus, etc. during pregnancy may be related to the development of autism, but it does not necessarily mean that infection with these viruses will make the child develop autism.
Autism is difficult to prevent, it is recommended to pay more attention during pregnancy, especially in the early stages of pregnancy, to enhance physical fitness, to reduce the occurrence of various types of infections, try to avoid the use of drugs that will have an impact on the fetus, and when you have to use them, you need to use them under the guidance of a professional doctor.