Normal conception during IVF is generally not recommended and may increase the risk of ovarian torsion or uterine infection. 1. Ovarian torsion: Generally, before the IVF procedure is performed, follicle growth will be promoted through the use of gonadotropins and other drugs, thus increasing the size of the ovaries. If you have sex at this time, the follicle may rupture due to external stimulation and ovarian torsion may occur, leading to serious consequences. 2. Infection of the uterine cavity: In the process of retrieving eggs, it is necessary to operate through the female reproductive tract, if you have had sex before, it may have a certain impact on the mucous membrane tissue of the vaginal area, resulting in the uterine cavity is susceptible to bacterial infections in the external environment, which will lead to the operation of the retrieval of eggs can not be carried out normally. Since sexual intercourse during IVF may cause the uterine cavity to be infected by the external environment or cause the ovaries, which have increased in size, to be twisted, it is not recommended to have sexual intercourse during IVF or to conceive normally.