It is possible to be pregnant after intercourse because the ovulation test will appear dark and light in the following cases: one is when the luteinizing hormone does not reach its peak. When the concentration of luteinizing hormone continues to rise and reaches its peak, then a strong (+) will appear. A strong (+) means that ovulation will occur about 24-48 hours after this result, so about 24 hours after the strong (+) appears then it will become (+-). In this case, if you choose to have intercourse, you have a very high clinical chance of getting pregnant. Because the survival time of the egg is 24h after ovulation, and the survival time of the sperm entering the vagina and reaching the fallopian tube is 2-3 days, so the sperm and the egg have enough chances to combine to form a fertilized egg, so it is possible to get pregnant.