The reason is that miscarriages are more damaging to the uterus and require a repair process. Although it is a natural miscarriage, the damage to the uterus is relatively large, the placenta is detached and the uterine wall is traumatized, and it takes about six months to fully recover. When you get pregnant too early, the endometrium is not fully normalized, which can cause the fertilized egg to not easily get laid, and even if it does, it can easily affect the healthy development of the fetus and cause a miscarriage. If the miscarriage is caused by external factors, the next pregnancy will have little effect. If the miscarriage is caused by poor embryonic development, it is recommended that both parties do chromosomal examinations to confirm whether there are genes that affect the healthy development of the fetus, which is conducive to the conception of a healthy baby.