The chances of getting pregnant after intercourse after a white plate are smaller and less hopeful. When a woman uses ovulation test paper to detect a white plate, it proves that the level of luteinizing hormone in the body has declined, and ovulation has already occurred, and the time for the egg to survive after discharge is within 48 hours, and if the egg is already dead after intercourse, pregnancy will not occur. If the egg is still alive, the sperm and the egg may develop into a fertilized egg after sex, and you can get pregnant, but the chances of that are small. If a woman wants to get pregnant, it’s best to have intercourse during the ovulation period, when the egg is more active and the fertilization rate increases. Women can detect ovulation by using ovulation test strips, basal body temperature and ultrasound to check the development of follicles. Usually when it grows to about two centimeters, ovulation will occur in a relatively short period of time, and the chances of pregnancy after sex are high.