1. Characteristics of a male fetus at three months of pregnancy. What are the characteristics of a male fetus at three months of pregnancy? First, the reproductive organs of the male fetus begin to develop. At this time, the gender of the fetus can be determined through B-ultrasound examination. Secondly, the proportion of the head and body of the male fetus gradually approaches that of an adult, and the head circumference also begins to increase. In addition, the bones and muscles of the male fetus are also growing and growing. 2. Nutritional needs of male fetuses in the third month of pregnancy. Women should pay attention to providing adequate nutritional support during the third month of pregnancy. For male fetuses