It is possible for a 40-year-old woman to get pregnant normally, this is because a 40-year-old woman has not yet reached menopause, or even menopause, as long as the reproductive endocrine function is normal, with a normal menstrual cycle and ovulation function has the possibility of conception. Because clinical infertility is a multifactorial complex disease, so to determine whether a woman can get pregnant normally, to exclude the corresponding infertility factors, including endocrine disorders, including follicle formation disorders, ovulation disorders, and even tubal blockage, tubal opacity or tubal tuberculosis, endometrial pathology may affect early pregnancy. There is also a combination of medical disorders, including hyperthyroidism, hypothyroidism and pituitary disorders that can affect pregnancy.