The question “How long does it take to get pregnant again after miscarriage or induction of labor” is a common question in clinical practice, and most doctors will answer without thinking: “At least 6 months of contraception!” In fact, it is not uncommon for women to become pregnant again less than a month after miscarriage (before menstruation resumes), and more often within six months after miscarriage. For the latter, the question of post-pregnancy trade-offs is even more tedious, and some people with a little medical knowledge may even ask rhetorically, “Doctor, has my uterine lining recovered in six months?” In fact, a normal menstrual flow means that the endometrium has been repaired, so how long does it take to get pregnant again? After reviewing the literature, we can basically conclude that for women with a first “biochemical pregnancy” (a pregnancy indicated by a urine or blood test with beta-hCG, but no gestational sac on ultrasound), it is recommended to actively prepare for pregnancy in the same month. For early abortions at less than 12 weeks of gestation, including medication and induced abortions, first spontaneous abortion or early cessation of embryonic development, a 3-month interval between pregnancies is sufficient. In the case of miscarriage or induction of labor (or full-term delivery) at 20 weeks of gestation or more, an interval of 12-24 months between pregnancies is recommended. It has been shown that too short an interval (less than 6 months) or too long an interval (more than 60 months) between pregnancies is detrimental to the fetus (newborn) and the mother. Of course, for more than two biochemical pregnancies or early embryonic arrest, recurrent miscarriage, stillbirth or fetal abnormalities, it is recommended to go to a fertility center or obstetrics clinic for further examination to clarify the cause and prepare for pregnancy under medical supervision.