If a condom is used during intercourse and it happens to be ovulated and the condom is broken, the chance of pregnancy is still very high, mainly because after the condom is broken, the semen will flow into the vagina, and the semen flowing into the vagina will quickly enter the uterine cavity and reach the fallopian tube to form a fertilized egg. If a condom is found to be broken, the emergency contraceptive pill can be taken within 72 hours after intercourse to reduce the chance of pregnancy. In addition, in the process of using condoms, you should pay attention to: 1. to know whether the condom is expired, once expired, the condom will be aging, which may lead to condom breakage. 2. to avoid rough actions during intercourse with condoms, which may also lead to condom breakage and cause pregnancy.