hi doctor, now i am doing my ovulation study, the ultrasound scanning result shows that multiple follicles are seen in both ovaries. on the 10th day, the dominant follicle in right ovary is1.5cm, 1.6cm, 1.7cm and on the 12th day it is 2.3cm, 2.5cm, 2.0cm. Now i want to know that why here happens three values?