In general, during an assisted reproduction treatment, you can lead a normal life unless otherwise indicated by the gynecologist. Weight training is usually discouraged during the final phase of ovarian stimulation and after an embryo transfer.
In the case of ovarian stimulation, when the ovaries begin to increase in size the patient usually feels more swollen and may have abdominal discomfort or pain. If she has this discomfort, it is better not to do intense physical exercise. In any case, regardless of the clinical manifestations that you may notice, if the ovaries have increased in size, it is advisable to avoid physical exercise (such as weight lifting) because of the risk of ovarian torsion (the ovary can rotate on its own axis and the blood supply is blocked). This is a serious complication that has to be treated in the operating room to recover the ovarian vascularization.
After an embryo transfer, it is also recommended to avoid exertion, especially during the following 3 days, to avoid any type of uterine contraction that could decrease the chances of the embryo implanting.