If the test reveals that there is no sperm and yet the pregnancy occurs, the most likely scenario is that there was an error during the routine semen test, and that the person being tested may have had an unusually low sperm count in his or her semen, but not a complete lack of sperm. If the semen contains a small amount of relatively good sperm, after intercourse, there is also a possibility of pregnancy, just the chances of pregnancy are not great, so if this situation occurs, there is no way to explain with common sense. It is best to let the man now go to the hospital, review the semen routine laboratory tests to further clarify the diagnosis, and this situation is very easy to get pregnant to cause premature abortion, so the pregnant woman should also go to the hospital to do a good job of examination, to determine the current situation of the fetus, and then consider the next step to deal with the program, so that you can achieve the best of both worlds. However, pregnant women should not be overly anxious, as this will affect the normal development of the fetus.