Progesterone should be given intramuscularly for 2 weeks after the transplantation, and a pregnancy test will be conducted around 2 weeks, and if there is no pregnancy, the drug can be stopped, if there is pregnancy, the intramuscular injection will be continued until 9-10 weeks of pregnancy, and if the development of the embryo is normal, the drug can be considered to be stopped. Egg retrieval for IVF transplantation will have some effect on ovarian granulosa cells and follicular membrane cells, so luteal support, also known as fertility preservation therapy, will be given routinely after IVF transplantation. If intramuscular progesterone is inconvenient, there are a variety of dosage forms that can be substituted, including oral and vaginal medications. If there are any abnormalities after frozen embryo transfer, you should go to the hospital for examination and treatment under the guidance of your doctor. Pay attention to regular and good pregnancy tests.