A biochemical pregnancy is an early miscarriage that occurs within 5 weeks of gestation, in which an elevated HCG of more than 25 mlU/mL can be detected in the blood or a positive urine pregnancy test, but the gestational sac is not visible on ultrasound, suggesting a failure of fertilization. Biochemical pregnancy is a kind of natural selection of the superior and inferior, so you do not need to be too nervous if you encounter such a situation, as biochemical pregnancy usually does not affect the next pregnancy. Unless it happens several times, it is necessary to go to the hospital for further detailed examination to find out the cause and targeted treatment. So, how long is the interval after a biochemical pregnancy before you can get pregnant again? Some doctors recommend a break of 3 months to 6 months to allow the uterus enough time to improve its own adverse condition that caused the miscarriage and to get out of the external environment that is not favorable to the development of the embryo. A biochemical pregnancy is a natural elimination that does not have an adverse effect on the endometrium like a purging operation, so no special treatment is needed and conception can continue.