Under normal circumstances, pregnancy reactions only occur in the first trimester of pregnancy when nausea and vomiting occur. If vomiting occurs in late pregnancy, it is considered to be caused by indigestion or slow gastrointestinal motility or acute gastritis. This is a problem of the digestive system, not a physiological manifestation, which requires timely examination of the cause, and then symptomatic treatment. The actual fact is that you will be able to get a lot more than just a few hours of exercise and walking in the late pregnancy. If you have nausea and vomiting, you can massage your stomach gently to promote gastrointestinal motility and help digestion. Because in late pregnancy, the uterus will increase the pressure on the digestive tract leading to slow gastrointestinal peristaltic function, easily causing indigestion will appear nausea, vomiting symptoms.