You are most likely to conceive during the 5 days before ovulation, along with the day you ovulate. Sperm can live up to 5 days inside your body, so if you have sex up to 5 days before your egg is released, you can get pregnant. After ovulation, your egg can only live for 12 to 24 hours. After this time is up, your chance of getting pregnant is virtually zero until your next menstrual cycle. Your chances of getting pregnant are at their highest in the 3 days leading up to and including ovulation.