The sensation of contractions with implantation is a paroxysmal, vague sensation of pain in the lower abdomen similar to the sensation of pain before or during menstruation, or accompanied by a sensation of cramping. At the time of the transfer, a uterine cavity embryo implantation procedure is performed and therefore may cause uterine contractions, resulting in the patient experiencing the sensation of contractions. On the day of the transfer performed in the outpatient clinic, the patient is advised to lie still for 20 to 30 minutes after the embryo is transferred into the uterine cavity to ensure the stability of the implanted embryo. If contractions are evident after the transfer, medications that inhibit uterine contractions and support luteal function, such as progesterone and dydrogesterone, can be added, and the specific medication regimen should be administered under the direction of a physician. Pregnant women should avoid nervousness after embryo transfer, try to maintain a calm state of mind, reduce exercise, can not stay up all night, usually in the transfer of 12 to 14 days after the hospital blood test to determine whether the conception.