The sperm will flow out and you will get pregnant because after the sperm is ejaculated into the vagina, a small part of the sperm is expelled and another part is still in the vagina, where the sperm will enter the uterine cavity through the cervix and then reach the fallopian tubes. Once the ovary ovulates, the egg enters the fallopian tube, where the sperm and egg unite to form a fertilized egg, which then enters the uterine cavity under the peristaltic motion of the fallopian tube, where it finds a suitable place to implant, grow and develop, and form a fetus. Therefore, there is still a possibility of pregnancy if the sperm is shed.