A woman’s low menstrual flow does not necessarily lead to pregnancy, need to be analyzed in conjunction with the cause of the disease, as follows: 1, if there is no ovulation without functional problems and the endometrium is not thin, it will not affect the conception of women can get pregnant; 2, if the low menstrual flow due to anovulatory menstrual disorders caused by the impact of conception, no ovulation, sperm, egg can not meet to form a fertilized egg, the woman will not get pregnant; 3, if the low menstrual flow due to the damage of the endometrium can affect the pregnancy, for example, there has been a history of repeated operation of the uterine cavity, which may make the endometrium thinner, or the past tuberculosis mycobacteria, mycobacterium tuberculosis can cause the damage to the endometrium.