Ultrasound monitoring of follicles can be done by abdominal ultrasound, which requires holding urine, or by vaginal ultrasound, which does not require holding urine. Most of the follicles are monitored by vaginal ultrasound, which relatively eliminates the need to hold urine and the vaginal ultrasound monitors the endometrium and the development of the follicles more clearly. For women with a menstrual cycle of 28-30 days, the first monitoring can be done on the 11th day of menstruation. Depending on the size of the follicles and the thickness of the lining, the next monitoring can be done every other day or on the advice of the doctor. It is important to have intercourse after follicle rupture under the guidance of a doctor to improve the chances of conception.