There are more reasons for marriage and non-pregnancy, and the treatment should be based on the cause and analyze the specific problems. If the couple has the same sexual partner, has normal sexual life and no contraception, and has not been pregnant for more than a year, it can be diagnosed as infertility. There are many reasons for infertility, such as tubal factor, uterine factor, immune factor, male factor, etc. It is recommended to consult infertility department and complete detailed examination, such as eugenics examination, gynecological ultrasound, tubal iodine oil angiography within 3-7 days after menstruation, and follicle monitoring and other examinations can also be completed. The man can also be screened for sperm quality and can also undergo targeted treatment to help with pregnancy. If a woman has taken the emergency contraceptive pill several times, there is a possibility of causing endocrine disorders and menstrual irregularities, she should stop using the emergency contraceptive pill, check the hormone levels of the body if necessary, and some women need to use drugs to improve the hormone levels that have been disturbed. In addition, too frequent sexual intercourse may also affect conception, and the frequency of sexual intercourse can be reduced to help pregnancy. If none of the above tests are abnormal, it is advisable to monitor ovulation and try to conceive. If there are special circumstances that confirm that natural conception is not possible, or if assisted conception is needed, the fertility center can be consulted.