If a woman has a low menstrual flow, she will not necessarily get pregnant, but she needs to analyze the causes, as follows: 1. If there is no ovulation and no functional problems and the endometrium is not thin, it will not affect conception, and women can get pregnant normally; 2. If the low menstrual flow is caused by anovulatory menstrual disorders, it will affect conception, because if there is no ovulation, the sperm and egg cannot meet and form a fertilized egg, and women will not get pregnant; 3. If the low menstrual flow is caused by damage to the endometrium, it will affect pregnancy, such as a history of repeated uterine operations, which can make the endometrium thin, or a history of Mycobacterium tuberculosis, which can cause damage to the endometrium.