Abnormal bleeding, ultrasound results

So I have been having bleeding with clots lately between my period and pain where my ovary is and finally went to the obgyn and got a papsmear and ultrasound. My papsmear came back as ASC-US and my ultrasound came back with a number of things: endometrial lining of 15 mm, cysts on both ovaries, an enlarged ovary, a hyper echoic mass that they think is a polyp, fluid. Now I have to get a hysteroscopy. I’m only 23 years old & am wondering if this is going to affect my fertility later on and whenever I google this stuff it gets me scared of cancer, can someone tell me if they usually are able to detect polyps on ultrasounds or do they always do the hysteroscopy after to check?