How did ancient countries diagnose women's pregnancy?

Unlike now, there were no advanced medical theories, superb technology and sophisticated instruments and equipment in ancient times. However, population reproduction is related to the spread of civilization and whether a nation has inexhaustible motive force for development. Therefore, the ancients are constantly exploring the theory of pregnancy and population increase. Generally speaking, there are obvious signs that a woman is pregnant. China's ancient Chinese medicine theory formed its own system and gradually formed? Look, smell, ask and cut? Treatment. Then it is necessary to check whether a woman is pregnant by taking her pulse. As for ancient Europe, there are two ways of legend. One is the smell of urine. The urine of pregnant women is different from other people in both color and smell, which is also a law discovered by westerners over time. Another magical method is to inject urine into the legs of African melons. As for what is a woman's pregnancy symptoms, it is not very clear now.