What Does This Transvaginal Ultrasound Report Specify?

I had a transvaginal ultrasound last week and thsee are the results Uterus measures: 7.6 x 3.6 x 4.8 cm Endometrial strip measures 1.1 cm The endometrial strip is homogeneous. Right ovary: 4.5 × 3.3 x 2.8 cm There is a dominant right ovarian follicle measuring 2.6 cm (what does this mean and is that large) Left ovary: 3.4 x 1.9 x 3.1 cm I have not had a period in 10 months and have previously had irregular periods. I have had abdominal pain in my ovaries for the last three weeks now, this is why the ultra sound was done. I had an abdominal ultra sound done as well and all organs were withing normal range. I don t know what normal ranges would be for these and is it possible the follicle is mistaken? Id have ovulated already if i had a follicle that large last week that was causing pain for weeks?