In the absence of measures, a year of pregnancy preparation without pregnancy suggests the presence of infertility, and there will be more items to check. The hormone level can also determine the function of the ovaries, which can affect the quality of the follicles and affect pregnancy. You can also have a monthly follicle monitoring to see if there are dominant follicles, as the absence of dominant follicles and poor development may also affect pregnancy. If you want to have a tubal examination you have to determine if the tubes are open bilaterally, blockage can also cause the chance of infertility to occur. Blood tests, eugenics, closed antibodies, liver function, kidney function, thyroid function, and insulin resistance tests should be performed, all of which may contribute to the occurrence of infertility factors. Pregnancy is not the problem of the female partner, but unilaterally the male partner should also be considered. The male partner should be allowed to undergo sperm quality tests, including eugenics, because poor sperm quality can also affect pregnancy.