The main reason is that at this time ovulation has already passed for more than 10 days, and the eggs will only survive for about 24 hours. 2. the endometrium has not shed yet, and there is no menstruation yet, so the chance of infection will not increase. Basically, there is no problem. If you don’t plan to get pregnant, you can get an intrauterine birth control ring to prevent pregnancy, because the intrauterine birth control ring is acceptable to both men and women, and the current birth control ring can be as high as 99.6%, and the side effects are relatively small, so it is recommended to get an intrauterine birth control ring.