The thickness of the endometrium is 6mm, if it is during ovulation, it is also possible to get pregnant. The optimal endometrial thickness for implantation is 7mm. Generally, during menstruation, ovulation normally occurs around 10-14 days after menstruation. You can monitor ovulation time through ovulation test strips, and if you have the conditions, you can go to the hospital and observe the maturity of follicle development through ultrasound examination, and choose the dominant follicle for intercourse, which can increase the chance of conception. During the preparation period, eat more fresh fruits and vegetables, especially foods rich in vitamins and proteins, cold and raw foods in moderation, and keep your pubic area hygienic and clean, especially during menstruation, to avoid gynecological diseases.