Four examination items that pregnant women must know. During pregnancy, it is very important to do routine physical examinations and examinations. With these examinations, you can protect yourself and your fetus. This article will introduce in detail the examination items that need to be done during the four trimesters. 1. Blood routine Blood routine is the most basic pregnancy examination. The main purpose is to check whether there is anemia, infection, total white blood cells in the blood of pregnant women.