If a breastfeeding woman does not have reasonable contraception, she may become pregnant, except that the amount of breast milk may be reduced, and most of the symptoms are the same as those of women in other periods. Therefore, there are not necessarily 14 signals of pregnancy in lactating women, the more common signals of pregnancy in lactating women are the following: 1. Menstrual stoppage: lactating women usually do not have menstrual periods, but may have ovulation, when women conceive will not show the symptoms of menopause. However, some women have menstrual blood when they are breastfeeding, and if they conceive at this time, they may have menopause; 2. Early pregnancy reaction: if a breastfeeding woman has early pregnancy reaction such as nausea, vomiting, drowsiness, weakness, lumbago, aversion to greasy food, etc., she may be pregnant; 3. Vaginal bleeding: some women may have a small amount of vaginal bleeding after pregnancy, which is usually a manifestation of a fertilized egg being laid. Therefore, if breastfeeding women experience a small amount of vaginal bleeding, they need to be alert to the possibility of pregnancy; 4. Breast tingling: some breastfeeding women will experience tingling sensation in their breasts and darkening of nipples and areolas if they are pregnant; 5. Positive early pregnancy test: breastfeeding women can choose to use early pregnancy test paper for testing, and if it is positive, they are likely to be pregnant. It is recommended that breastfeeding women who show signs of pregnancy promptly go to the hospital for HCG testing, gynecological ultrasound and other examinations to clarify whether they are pregnant. If a woman is pregnant, it is advisable to suspend breastfeeding to avoid the effects on herself and her child.