If the chances of getting pregnant are slim, the most common cause is due to an abnormality in the congenital development of the uterus, such as an infantile uterus, which is difficult to achieve pregnancy through treatment. However, there are some causes of infertility that can be treated to achieve pregnancy relatively more often, such as infertility caused by tubal obstruction, except for the interstitial part of the obstruction of other parts of the fallopian tubes, through the treatment of the chances of pregnancy. If you cannot get pregnant naturally, as long as the uterus develops normally and the ovaries function normally, you can achieve pregnancy through IVF. However, if the uterus is abnormally developed, such as a small uterus like a trace uterus, the chances of getting pregnant are almost non-existent, and pregnancy will not be achieved through treatment.