Sperm can get pregnant only if they are very mobile and the number of abnormal sperms is within the normal range. To know the exact sperm count and whether the sperm are normal, a routine semen test is needed. Routine semen tests include semen volume, semen liquefaction time, sperm concentration, forward motile sperm, number of abnormal sperm, and more. Under normal circumstances, the semen volume is between 1.5 ml and 2 ml, the sperm liquefaction time is not more than 60 minutes, the sperm concentration should be more than 15 million per ml, the total number of sperms discharged each time is more than 39 million, the proportion of forward-moving sperms should be more than 32%, and the proportion of normal morphology sperms should be more than 4%, all of which are the minimum standards for pregnancy. If you can meet the above criteria, pregnancy is usually not a big problem. If the proportion of normal spermatozoa is less than 4%, it is called aberrant spermatozoa, and this condition may affect pregnancy and needs active treatment.