First, the communication between contemporary college students and teachers is not as much as expected. In fact, the college entrance examination is like a watershed. Many children can still get the care of teachers like Chunfeng before the college entrance examination, but the communication with teachers suddenly decreased after they went to college. Especially the freshmen who just entered the school, if it is not that special personality, they will not see the teacher several times a month. Not to mention freshmen, even after graduation, some teachers may not be able to name some students.
And on the other hand, pregnant students must be deliberately avoiding the teacher's examination. After all, once discovered, it is likely to affect his future and future. In this case, it is also possible that the school did not find the students pregnant. In addition, a freshman girl's pregnancy will definitely be noticed by her roommate, but generally speaking, as long as it's not a bad interpersonal relationship, she will help hide it, so there is nothing wrong with not being exposed.
Second, the family's indifference is also a major factor in its failure to be discovered in time. Many people may wonder why even parents failed to find out about it, and they could only make a reasonable guess without knowing the girl's family environment. On the one hand, there may be less care for children at home, or busy with work or other reasons that ignore the physical condition of children; On the other hand, children may not be pregnant when they are pregnant, but when they are pregnant, they leave home for school and stay. In the case of a long distance, it is difficult for his parents to observe whether the child is pregnant even by voice phone.