Weak spermatozoa in men can potentially lead to a biochemical pregnancy. Weak spermatozoa is defined as less forward movement of sperm, also known as decreased sperm motility. Biochemical pregnancies are mainly caused by poor sperm quality and poor egg quality, where the fertilized egg forms an embryo that is of low quality and has not yet reached the uterus for implantation. Suspension of the embryo is easily caused, resulting in a biochemical pregnancy. Usually, the embryo will be expelled from the body with menstruation in about 28 days. Therefore, it is recommended that both men and women must do prenatal checkups during the preparation for pregnancy. For men with weak spermatozoa, it is recommended that the cause of the disease be identified, and active treatments be given for the cause of the disease to improve the quality of semen, which can be improved through surgical treatments or medications, such as sperm-generating capsules, or by improving the life style.