Ultrasound what can I expect?

HHi, after having some symptoms and an enlarged cervix the doc reffered me for an ultrasound and a gaenocology app. The ultrasound is tomorrow and am wondering what can I expect? Ive had a transvaginal ultrasound before so know what it consists of...but is there anything they can tell me? Or do I have to wait for the gaenocologist to interpret the results? Is there anything I should ask? Thanks!