Most of the reasons for not having a period for three months are due to irregular periods or amenorrhea, which usually do not lead to pregnancy. However, if a woman is breastfeeding, she may not have her period because she is breastfeeding. In this case, it is possible to ovulate and therefore there is a possibility of pregnancy. A woman’s normal menstrual cycle is usually 21-35 days, with an average of 4-6 days for a clean period. Normal menstruation occurs based on the end of the luteal cycle after ovulation, when estrogen and progesterone levels retreat, causing the endometrial layer to shed. When a woman is under the influence of high stress, malnutrition, excessive exercise, chronic diseases, etc., there is a risk of disruption of the menstrual cycle, resulting in menstrual disorders leading to anovulation and therefore no conception. However, it is recommended to go to the hospital for a timely checkup to eliminate abnormalities caused by organic lesions.