The term “great aunt” refers to menstruation. The chances of getting pregnant are generally not great. If you have a period for three or four days, the follicles are still growing and developing and are not yet mature, so the egg cannot be discharged and cannot combine with the sperm to form a fertilized egg, so the chances of getting pregnant at this time are not very high, and women generally have a higher chance of getting pregnant if they have sex during the period of ovulation. For women who need to prepare for pregnancy, if necessary, you can use ovulation test paper or go to the hospital through ultrasound to monitor the growth and discharge of follicles, so as to improve the chances of conception. For women who have a normal sex life but have not yet conceived, it is recommended that they go to the gynecology department of a regular hospital to improve the gynecological ultrasound, sex hormones, and, if necessary, improve the tubal imaging and other related tests to determine the cause of the disease and then actively treat it under the guidance of the doctor.