Many families are suffering from infertility, and pregnancy is a matter of timing and luck! So what are the basic conditions for pregnancy, here’s what you need to know. 1, the man can produce a sufficient number of sperm with normal morphology and vitality, as well as a suitable sperm survival fluid (semen). And the vas deferens is open and unobstructed. 2.The woman’s ovaries can produce normal mature eggs and the fallopian tubes are unobstructed. 3.Normal couple intercourse within a certain period of time before and after ovulation of the woman. The structure and function of the reproductive organs of both men and women must be normal to ensure that sperm is input into the female reproductive tract to unite with the egg and fertilize it. 4. Normal fallopian tubes: The most common consequence of abnormal fallopian tubes is to cause ectopic pregnancy. Only normal fallopian tubes can allow the sperm and egg to meet and fertilize in the tube and transport the embryo to the uterine cavity. 5. The cervix should be normal: if there is inflammation of the cervix, the cervical mucus is very sticky and sperm cannot easily enter. Only with a healthy cervix, during ovulation, the cervical mucus discharged becomes clear so that sperm can drill into the cervical mucus and be stored in the cervical canal, released in batches and swim to the uterine cavity.