A woman experiences a first month of menstruation and a second month without menstruation after giving birth. If no contraceptive measures are taken, such as not wearing a contraceptive ring, or not wearing a condom, it is possible that the woman is pregnant, especially if her menstrual cycle is delayed for more than 10 days, the possibility of pregnancy is high. At this time, you can first do early pregnancy monitoring or take a blood test for HCG, which can be more accurate to rule out the possibility of pregnancy in women. In addition, some women adopt exclusive breastfeeding during the breastfeeding period, when the level of lactogen in the body is high, which can inhibit the ovulation function of women’s ovaries and also cause disruption of women’s menstrual cycle. Therefore, it is normal for some women to experience irregular menstruation even though pregnancy has been ruled out, and their menstrual cycle will gradually return to normal in 2-3 months after they stop breastfeeding, and no special treatment is needed.