Ovulation does not necessarily lead to pregnancy. Only to ensure that the quality of male sperm is normal, the development of the female reproductive system is not abnormal, and there is a normal egg discharge during ovulation, can we ensure that there is a possibility of pregnancy after ovulation. If the quality of male sperm is not good, or if there is azoospermia, abnormal development of the female reproductive system, serious inflammation of the female reproductive system, abnormal function of the female ovaries that cannot eliminate normal eggs, and female immune diseases, all of them will affect normal conception. If you have a need for fertility, you can prepare for pregnancy for three months first. During the preparation period, women should insist on exercising, avoiding labor and staying up late, and men should avoid smoking and drinking. You can also go to the regular medical institutions for preconception examination, and pay attention to folic acid supplementation.