When to stop in vitro fertilization progesterone depends on the specific situation, usually three months of medication can be discontinued, three months after the body progesterone insufficient, need to extend the time of taking the drug. In order for the embryo to grow and develop normally after in vitro fertilization, it needs to be artificially supplemented with progesterone, which can be supplemented by taking dydrogesterone tablets. After the test tube transplantation to go to the hospital to check to determine whether the transplantation is successful, after the transplantation is successful, generally have to take dydrogesterone tablets for three months, but not be able to arbitrarily discontinue the use of the drug, we must first go to the hospital blood test to understand the situation of the progesterone, the doctor under the guidance of the decision to discontinue the time after the three months after the body progesterone is insufficient, the need to prolong the time of the medication. It is recommended to take dydrogesterone tablets under the guidance of a doctor after IVF transplantation, and it is not advisable to use the drug blindly by yourself.