If you have been bleeding after biochemistry, it is possible that there are residues in the uterine cavity that have not been discharged. It is recommended that you go to the hospital to have a gynecological ultrasound examination to confirm whether there are any residues in the uterine cavity that have not been discharged. If only a small amount of residue is not clean, you can, under the guidance of the doctor, take motherwort supplements to promote the discharge of residue in the uterine cavity as soon as possible, to avoid prolonged bleeding, resulting in infection of the uterine cavity, causing endometritis. Bleeding time is relatively long, more than 10 days or so, need to take cephalosporin antibiotic anti-inflammatory treatment under the guidance of the doctor, the effect of drug treatment is not good, need to cooperate with the doctor to do the purging treatment. Biochemical pregnancy is due to the quality of the fertilized egg itself is not good, caused by the phenomenon of fertilization failure, the next pregnancy has no effect, do not worry too much.