If you have a double bar on the 14th day after ovulation but can’t see the gestational sac, you don’t need to be overly nervous, you can wait for a few days and then go to the doctor for a checkup. If you have had intercourse during ovulation, the human chorionic gonadotropin will increase after the fertilized egg is deposited in the body, and you can detect whether you are pregnant through the pregnancy test, if there are two bars on the pregnancy test paper, it means that you are pregnant, but at this time the pregnancy time is relatively early, and therefore you may not be able to see the symptoms of the gestation sacs, which is a normal situation. If you want to know the growth and development of the fetus, you can wait for 1-2 weeks and then go to the hospital for ultrasound to determine whether there is a gestational sac. If there is no gestational sac, there may be a biochemical pregnancy, ectopic pregnancy and other conditions, and need to actively seek medical treatment.