The standard size of the corpus luteum after ovulation is about 2.5-3.0, not more than 5 centimeters, 7-8 days after ovulation the volume of the corpus luteum reaches its maximum, it is best to regularly ultrasound to see the size of the corpus luteum, after ovulation the corpus luteum will appear a small amount of bleeding is a normal phenomenon, consider the pressure increase caused. If too much bleeding will cause the corpus luteum to increase in size, it is easy to have abdominal pain and other uncomfortable symptoms, it is best to use reasonable hemostatic drugs under the guidance of a doctor. If ovulation can be checked by ultrasound, if the corpus luteum can determine ovulation, you can use ovulation test paper to monitor the ovulation situation, during ovulation intercourse can be pregnant.