Low back pain before frozen embryo transfer how to get rid of pain after transfer has little to do with the transfer. There are many reasons for back pain, such as the use of medication before the transfer, exertion, and suffering from stones and lumbar muscle strain can cause back pain. Frozen embryo transfer is the process of placing frozen embryos into the uterus with thawed blastocysts called frozen embryos at the appropriate time for the transfer. Whether or not back pain occurs before or after the frozen embryo transfer has little effect on the success of the transfer. In addition, in order to clarify the success of the transfer as soon as possible, it is recommended that a blood test for human chorionic gonadotropin be taken after 8 days of the transfer to clarify whether or not the transfer was successful.